Penicillins (there are more than 10 varieties) cause intensely itchy spots over the skin. But it may not be the cause of an itchy clitoris
. It could be a rash
, or contact dermatitis
. Scratching the area only aggravates the itch. Use a cortcosteroid and antihistamine ointment. Be sure there is no vaginal infection
. Cool wet sponging can partially relieve an acute itchy episode.