Hi Kumar Uday. Thanks for your query and an elucidate history. Scrotum Angio-keratome are very very rare, so they are mentioned only for discussion purpose. The small pimples on the scrotum are usually due to multiple sebaceous cysts. Consult a General Surgeon or a Dermatologist; He may tell you whether you require any treatment or they are self limiting. As a precaution, use loose underwear and pant, keep the area ventilated. Clean the scrotum with tap water 2 to three time a day for the skin the breathe. You will be fine soon.