GUIDE
Molluscum is a harmless viral skin infection that causes pearly, dome-shaped bumps with a tiny dimple in the center. It goes away on its own — but it takes a while.
You noticed a few small, shiny bumps on your child's skin and now there are more of them. They don't seem to bother your kid at all, but they keep spreading. Welcome to molluscum contagiosum — the most annoyingly patient virus in pediatric dermatology.
Molluscum contagiosum is a viral skin infection caused by a poxvirus — yes, it is in the same family as smallpox, but do not let that alarm you. It is completely benign. The virus infects the top layer of skin and causes small, firm, dome-shaped bumps that have a distinctive dimple (or dent) in the center. Dermatologists call this dimple "umbilication," and it is the single best way to identify molluscum.
The bumps are painless. They do not itch (unless eczema is in the picture). They are not red or angry-looking — at least not initially. They just sit there, looking like tiny, shiny pearls on the skin. And then more appear. And more. That is the frustrating part. Molluscum is self-limiting, meaning your child's immune system will eventually clear it. But "eventually" can mean 6 to 12 months, and sometimes longer.
Molluscum is incredibly common in children ages 1-10, peaking between ages 2-5. Estimates suggest up to 5-10% of children will get it at some point. It is not a reflection of hygiene, immune problems, or anything you did wrong. The virus is just very good at finding its way onto kids' skin, especially in warm, humid environments where skin is exposed and shared surfaces are common — like daycare, swimming pools, and bath time.
| Feature | What to Look For |
|---|---|
| Size | 2-5mm in diameter — about the size of a pinhead to a pencil eraser. Rarely larger. |
| Shape | Dome-shaped, round, smooth. They look like tiny pearls sitting on the skin. |
| Central dimple | The hallmark feature. A small dent or pit in the center of each bump (called umbilication). Easier to see with a magnifying glass on smaller bumps. |
| Color | Flesh-colored, pearly white, or slightly pink. Sometimes translucent. On darker skin tones, they may appear slightly lighter than surrounding skin. |
| Texture | Firm and smooth. Waxy-looking surface. Not rough or scaly like warts. |
| Tenderness | Usually painless. Not itchy unless surrounded by eczema or becoming inflamed. |
| Number | Can range from a single bump to dozens. Average is 10-20 at any given time. They tend to multiply over weeks. |
| Location | Trunk, arms, legs, armpits, and face are most common in children. Can appear anywhere except palms and soles. |
| Feature | Molluscum | Warts | Milia | Chickenpox |
|---|---|---|---|---|
| Central dimple | Yes — the signature feature | No — flat or rough top | No — smooth and round | No — fluid-filled blisters |
| Surface | Smooth, pearly, waxy | Rough, cauliflower-like | Smooth, tiny, white | Blisters that crust over |
| Size | 2-5mm | Variable, often larger | 1-2mm (smaller) | Variable, with surrounding redness |
| Itch | Usually no (unless eczema present) | No | No | Very itchy |
| Spreads on body | Yes — autoinoculation | Yes — slowly | No | Yes — rapidly with fever |
| Duration | 6-18 months | Months to years | Weeks (resolves on its own) | 7-10 days |
Molluscum spreads in three ways, and understanding them helps you contain it.
Direct skin-to-skin contact is the primary route. Your child touches someone else's bumps (or vice versa), and the virus transfers. This is why it runs through daycares and preschools.
Autoinoculation is the second — and often the biggest — driver of spread. Your child scratches or picks at their own bumps, gets viral particles on their fingers, and then touches another part of their body. This is how a few bumps on the arm become dozens scattered across the trunk, legs, and armpits. The white, waxy core inside each bump is essentially a packet of concentrated virus.
Fomite transmission — the virus living on objects — is the third route. Towels, washcloths, bath toys, and shared clothing can all carry the virus. Pool water itself probably does not transmit molluscum, but shared pool towels and physical contact at the pool absolutely can.
| Action | Details |
|---|---|
| Cover the bumps | Use clothing or a bandage to cover visible bumps when your child is around others. This is the single most effective way to reduce transmission. Bumps under clothing are already covered. |
| No sharing towels or washcloths | Each family member should use their own towel. The virus survives on damp surfaces. This applies at home, at the pool, and at daycare. |
| Discourage scratching and picking | Scratching a bump releases the virus onto fingers, which then inoculate other parts of the body. This is the main way molluscum spreads to new body areas. Trim fingernails short. |
| Moisturize eczema-prone skin | Intact skin is a strong barrier against molluscum. If your child has eczema, aggressive moisturizing and eczema management reduce the number of entry points for the virus. |
| Do not share bath water | If siblings bathe together and one has molluscum, bathe separately until the bumps have cleared. The virus can spread through shared bath water. |
| Skip the shaving or scrubbing | Do not try to scrub, pop, or shave the bumps at home. This spreads the virus to surrounding skin and can cause secondary bacterial infection. |
Molluscum changes slowly and it's hard to remember what was there last week. Use tinylog to log symptoms and snap photos so you can show the dermatologist exactly what's been happening — not just what it looks like today.
Here is the honest truth: pediatric dermatologists disagree about whether to treat molluscum. Both sides have valid points.
The case for waiting: Molluscum resolves on its own. Every single time. The virus does not cause lasting harm. Treatments can be painful, expensive, and may leave temporary marks of their own. For a condition that will disappear without intervention, subjecting a toddler to painful office procedures is a legitimate concern. The American Academy of Pediatrics considers watchful waiting a reasonable first-line approach.
The case for treating: Waiting 6-18 months while bumps multiply and spread to siblings and classmates is not nothing. Children with eczema get hammered by molluscum — it spreads faster, lasts longer, and triggers eczema flares. Visible bumps on the face can cause social distress in older children. And some parents simply cannot watch it spread for a year and do nothing. Treatment works, and for some families, it is the right call.
The practical middle ground: Many dermatologists take a targeted approach — treating bumps in cosmetically sensitive areas (face, hands), bumps that are actively spreading, and bumps in children with eczema, while leaving isolated bumps on the trunk to resolve on their own.
| Treatment | How It Works | Pros | Cons | Best For |
|---|---|---|---|---|
| Watchful waiting (no treatment) | Let the immune system clear the virus on its own. | No pain, no side effects, no scarring, no cost. The virus always resolves eventually. | Takes 6-18 months. Bumps may keep spreading in the meantime. Frustrating to watch. | Mild cases with few bumps. Children without eczema. Families comfortable with waiting. |
| Cantharidin (beetle juice) | A blistering agent applied by the dermatologist in-office. It causes a blister to form under the bump, which lifts it off. | Painless at application. No needles. Done in the office. Effective. | Blistering 24-48 hours later (can be dramatic). May need repeat visits. Can cause temporary skin discoloration. Not FDA-approved (used off-label). | Multiple bumps. Kids who tolerate office visits. Most commonly used active treatment. |
| Cryotherapy (freezing) | Liquid nitrogen freezes and destroys each bump. | Quick. Effective for individual bumps. | Painful — difficult for young children. May cause blistering and temporary scarring. Requires repeat visits. | Older children who can tolerate the discomfort. Small number of bumps. |
| Curettage (scraping) | A small curette scrapes each bump off the skin surface, sometimes after numbing cream. | Immediate removal. High success rate for individual bumps. | Painful even with numbing cream. Bleeding. Small risk of scarring. Traumatic for young children. | Older children. Isolated stubborn bumps. Done under numbing cream. |
| Imiquimod cream (Aldara) | A topical immune-response modifier applied at home. Stimulates the local immune system to fight the virus. | Applied at home. No office visits for treatment. No pain during application. | Slow to work (weeks to months). Can cause local redness and irritation. Used off-label for molluscum. Mixed evidence on effectiveness. | Families who want home treatment. Widespread bumps where in-office treatment is impractical. |
If your child has both molluscum and eczema, you already know this is harder than the textbooks make it sound. Here is why.
Eczema damages the skin barrier — the outermost layer that normally keeps viruses out. With that barrier compromised, the molluscum poxvirus has an easier time getting in and establishing new bumps. Children with eczema tend to develop more bumps, in more locations, that take longer to clear.
On top of that, the skin around molluscum bumps often develops a localized eczema flare called molluscum dermatitis. The area around the bumps becomes red, itchy, and inflamed — which makes your child scratch — which spreads the virus to new areas. It is a vicious cycle.
The management strategy for the combination is dual: treat the eczema aggressively (daily moisturizing, topical steroids for flares as directed by your pediatrician) AND address the molluscum (either through active treatment or careful monitoring). Do not ignore either one. Some dermatologists will use topical steroids around the molluscum bumps to control the eczema even though steroids can theoretically worsen viral infections — the benefit of reducing the itch-scratch-spread cycle usually outweighs the risk.
If your child has moderate-to-severe eczema and developing molluscum, a pediatric dermatologist referral is worthwhile. The combination requires more active management than either condition alone.
The typical timeline for molluscum looks something like this:
Months 1-3: Initial bumps appear. You Google, you worry, you get a diagnosis. New bumps may keep appearing because the virus is still establishing itself.
Months 3-6: The number of bumps may plateau or continue to slowly increase. This is the most frustrating phase because it feels like nothing is happening. If you opted for treatment, you may be going in for repeat sessions.
Months 6-12: The immune system starts winning. Some bumps begin to inflame (turn red) and then resolve. New bumps slow down. You start to see progress.
Months 12-18: Most cases are fully resolved. The last few bumps go through their inflammation-and-resolution cycle. No scarring in the vast majority of cases.
Some children clear molluscum in as little as 2-3 months. Others take up to 2 years. The average is about 12 months from first bump to last bump. If bumps are still appearing after 18 months or your child is immunocompromised, talk to your dermatologist about a more aggressive approach.
The AAP and CDC say children with molluscum should not be excluded from daycare, school, or swimming. It is a mild, self-limiting condition, and excluding children for up to a year would be impractical and unnecessary.
That said, reasonable precautions help:
Some daycares have their own policies that are stricter than AAP guidelines. If your daycare pushes back, a note from your pediatrician explaining that molluscum does not warrant exclusion per AAP guidelines usually resolves the issue.
Your pediatrician can diagnose and manage most molluscum cases. But a referral to a pediatric dermatologist makes sense if:
Most of these warrant a same-day or next-day appointment, not an ER visit. The exception is periorbital (near-eye) bumps with any eye symptoms — that needs prompt evaluation.
A bump turning red and inflamed is the most commonly misunderstood sign. It almost always means the bump is about to resolve — not that it is infected.
This confuses almost every parent. A molluscum bump that has been quietly sitting there for weeks suddenly turns red and angry-looking. Your instinct says infection. But in most cases, this redness means your child's immune system has finally recognized the virus and is attacking it. Within 1-2 weeks of this inflammation, the bump will flatten and disappear. Do not panic when a bump gets red — celebrate it (quietly).
If your child has eczema, molluscum is going to be more difficult. Eczema-damaged skin lets the virus spread more easily, so kids with eczema tend to get more bumps that spread faster. The eczema can also flare around the molluscum bumps (called molluscum dermatitis), creating itchy red patches that make everything look worse. Managing the eczema aggressively — daily moisturizing, treating flares promptly — is just as important as addressing the molluscum itself.
The white core inside each bump is packed with viral particles. If you squeeze or pick a bump, you spread those particles onto the surrounding skin and your child's hands, which leads to new bumps in new locations. This is the number one reason molluscum spreads across the body. Resist the urge, and teach your child to leave them alone.
Molluscum changes slowly, so it is hard to tell if things are getting better or worse. Take photos of the affected areas every two weeks, in the same lighting, from the same angle. This gives you and your dermatologist an objective record. It also helps you see progress when it feels like these bumps will never go away — because they will.
Most daycares follow AAP guidance and do not exclude children with molluscum — but not all. Have the conversation early. Bring a note from your pediatrician if needed. Cover bumps with clothing or a bandage. And be honest with other parents: molluscum is extremely common, it is harmless, and their kids will likely get it eventually regardless.
This guide is for informational purposes only and is not a substitute for professional medical advice. Molluscum contagiosum is generally harmless and self-limiting, but if bumps appear infected, are near the eyes, or your child is immunocompromised, consult your pediatrician or a pediatric dermatologist for evaluation and management.
