Versicolor pink on the neck
Although pityriasis pityriasis rosacea appears mainly on the trunk, it often spreads throughout the body, including the arms, neck, and even the scalp . The rash rarely spreads to the face.
It is not known if pityriasis is contagious and there is no cure for it. The skin condition clears up and usually clears up in six to eight weeks.
In many cases, a dermatologist will prescribe oral antihistamines or topical steroids to relieve the itching. Several studies have looked at treatment options, but there are several theories that can shorten the course of the rash, including concentrated doses of erythromycin (an antibiotic used to treat acne), sun exposure, and UVB radiation therapy .