 [ Symptoms ] what is the worst weather for exercising outdoors with allergies [ Disease ] unfortunately without the ability to examine you first hand i would not be able to determine the true nature or cause of this blister based solely on the information in your posting you will need to see your medical provider it went away i am almost positive it was from the way i was taking care of the scratch hi snyder you must stop using a blanket or pillow for masturbating cant see how you got a friction blister any other way keep the and you will do some real damage to your penis just think of this as men we get one penis break it that is it you cant get a replacement one good luck have you had unprotected sex lately if not then this definitely is skin irritation caused by masturbation do not worry this kinda thing is extremely common in fact it is so commonplace that there is a penis health creme called man1 man oil that treats masturbation induced skin irritation almost exclusively simply rub it into your skin once a day and it will repair the damage and keep it from reoccurring it is totally safe and can be purchased online hope this helps