Question: Hello Dr. About a week ago after masturbation, I noticed that the right side of my penis head as well as a small area underneath was sensitive and red. I dismissed it due to possible over use and friction. Since then, the shaft redness has gone away, but a shallow water type blister about 9 mm diameter with a slight red outline has formed on the right side of the head and is becoming more sensitive. At first, I thought is was tight underwear irritating it further since my penis tends to lay to the left. Now I am getting concerned. No discharge, odors, fluids, etc. Just a discoloration and noted slight separation of skin (like I said, a shallow blister)

Dr. Goel, thank you for your prompts reply to my issue. I have a follow up question. The reason I have become concerned is that 1 month ago I had PROTECTED sex with a woman other than my normal partner. There was no oral sex or intercourse without a condom (my gentials NEVER had direct contact with her mouth or vagina). But when looking up possible reasons for the blister all I see on the internet is scary STD information which causes paranoia on my part. My question is: In your experience as a Dr., does this look like an STD or penial yeast infection? I didnt think a blister would take this long to heal. Like I said previously, I notice redness and sensitivity about 1 hour after masturbating 9 days ago. No burning with urination or antiseptic wash or alcohol, dicharge, odors, fluids, bleeding, etc. Just local sensitivity to the affected area throughout the day.

Thank you again for you time.