psoriasis is an autoimmune disease that affects the nail and skin. close up of psoriasis nail on dark background.

amorolfine background body candida care closeup condition cutaneous deformed dermatology dermatophyte dermatophytic diagnosis dirty discomfort disease etiology finger fingernail flesh fungal fungi fungus hand health healthcare human hurt illness infected infection injured injury keratin medical medicine nail onychomycosis pain patient problem psoriasis rash skin treatment ugly