onychomycosis or fungal nail infection on damaged nails after gel polish, onychosis. longitudinal ridging nails with

abnormalities affliction ailment bad brittle care cracked damage defective detachment diagnosis directory disease disorder finger fingernail fungal fungi fungus gellacquer illness infection ingrown lack longitudinal manicure medical mycology mycosis nail nutrients onychodystrophy onychomycosis onychosis paronychia polish problem psoriatic ridging shellac sickness symptoms treatment trouble tutorial