How long will this last?
Longer than you would like: typically 12 to 18 months, sometimes up to two years. Individual spots last two to three months, but new ones keep appearing while the infection is active. It does end completely, and usually without any mark — but knowing the real timescale up front saves a lot of fruitless remedy-hunting.
Should we treat it?
Usually not, in children. The treatments are uncomfortable, can scar, and are aimed at something that will disappear on its own. Leaving it alone is the recommended approach on the evidence, not a fob-off. Treatment is more often worthwhile for adults with genital lesions, or where spots are causing genuine distress.
The spots have gone red and angry. Are they infected?
Usually not — this is the beginning-of-the-end sign, and it means the immune system is clearing the virus. Resolution normally follows within weeks. Genuine infection spreads into the surrounding skin with warmth, increasing pain and often fever. The red crusted stage is very commonly given antibiotics it never needed.
Can my child go swimming and to nursery?
Yes to both. There is no exclusion for molluscum. Cover the spots with clothing or a waterproof plaster for swimming, use your own towel, and carry on. Keeping a child out of school or the pool for this is unnecessary and unfair to them.
Is it because we are not clean enough?
No, not remotely. Molluscum is extremely common in scrupulously clean households — it spreads by ordinary skin contact between children, and hygiene has very little to do with it.
Why does my child keep getting more?
Mostly from scratching, which carries the virus to new skin — which is why spots appear in lines. Treating the itchy eczema around them is the most effective way to reduce spread, along with keeping nails short and covering spots the child cannot leave alone.
Will it leave scars?
Not usually — molluscum heals cleanly if left alone. The scars people have are almost always from squeezing, picking or scratching, or occasionally from treatment. Which is the strongest argument for leaving it be.
I'm an adult with these in my groin. What does that mean?
In adults, genital molluscum is usually sexually transmitted, so full STI screening is worth doing alongside. Treatment — usually cryotherapy — is more often recommended than in children, to reduce passing it on. And do not shave the area: shaving is the main reason it spreads.