Besides discharge, signs you have an infected or irritated epidermoid cyst include: Skin redness inside or around the belly button Slow-growing lump with a tiny hole in the center Tender or sore ...

For example, Miller says small, localized areas of infected skin may respond well to topical antifungal creams such as clotrimazole or terbinafine, both of which are available over the counter.

A piercing is infected if it is red ... It's best to leave it in unless a doctor says otherwise because the hole can close up and trap bacteria or pus inside. Don't try to squeeze the pus out ...