Ive had this for about 3 months , now there are some on other leg and arms.Ive had 2 biopsy not cancer. Dr thinking fungus . I was on antibiotics and am currently taking Terbinafine 250mg and Ketoconazole 200mg pill and cream and wash . I recently had a tooth pulled and gum filled with puss. maybe that was hindering my healing. so frustrated and worried. It started the size of quarter and now is 2 1/2 "