Hi I have a small single painless blister on the base of my penis where pubic hair starts, I ve had it for nearly 3 weeks now and it s not showing any signs of going. The is no redness or itching, fever or discharge and I have had no other symptoms. I think it might be a water blister as I have nothing similar to any other blog. What do you think it is? The blister doesn t leak fluid and it doesn t look like a hair follicle is there but the maybe a tiny one I cannot see. I am sexually active and it doesn t cause any discomfort at all. If my suspicions should be correct how long can a water blister take to go? Can cream help?