Skin biopsy, Cryotherapy, Electrodessication and curettage, Steroid injection, Lupus, Dermatomyositis, Hidradenitis sup...purativa, Skin cancer, Lichen planus, Vasculitis, Hair loss, Acne, Psoriasis, Dermatitis, Rosacea, Pyoderma gangrenosum, Drug eruption, Bullous pemphigoid, Pemphigus, Granuloma annulare, Sweet's syndrome