As i am suffering from stomach infection past 3 days i was on alot medication & constant fever.   i was not able to masturbate in that period of time. As i felt today i did try but inner skin was too dry aftr some minute i noitced a little blister had formed on top of the head. Left side only. Making painfull to pull skin up. It brust aftr 2 min. i guess. But the pain was there ..I applied coconut oil over it to smoothen the friction. Can you help me suggest what to do. First time evr experienced something like this.