My son had these when he younger. After doing loads of research, I treated them using homeopathic thuja tablets, and a vitamin E oil capsule a couple of times a day. You need to pin-prick the capsule, and rub the oil into the affected skin. You can do either one of these, I decided to do both, I was only weeks away from having my second child, and didn't want a new born 'catching' them. Anyway, it was all gone within the week, and has not come back since! My doctor said it can hang around for a long time, and get worse before it gets better, but with this treatment, they all dried up and disappeared.