Patient's question:
A few days ago, I noticed a small blister on the base of my penis. In the past two days, I've noticed that the blister has been getting bigger. It feels a bit hard when squeezed and causes a slight pain. I don't know what this blister is or what's causing it. I hope a doctor can help me with an answer. Thank you!Doctor's answer:
If it's blister-like, consider it as herpes caused by a viral infection, and you can apply acyclovir ointment. If it's a lump-like, it's likely caused by a bacterial infection, and you can apply Bactroban ointment.