Hi I'm 20 years old and I've been having this problem for the past couple of months. About 3-4 months ago I woke up with a group a of very small blisters on the shaft of my penis. I decided to leave them alone but they just kept getting bigger after a few days so I decided to pop them. Well I didn't take care of the open wound and they actually got infected and turned into and open sore. Well after that was all healed up about a month later the same happened so popped them again and actually took care of the open wound and they healed within a few days. I've had to repeat this process for the past few months once a month I've had multiple sex partners and masterbate frequently