Hello,

Recently I went to my Grandmothers house for two days, the first day I was there I had a shower and the top of my penis itched a little bit off and on, maybe once every two hours or so. The second day it was a little worse and there was a very small red spot on my penis and it was dry.
Today, two days later, I have the same thing, however now theres three small red bumps, raised perhaps .25 mm and perhaps 1/2mm diameter on my forsekin. Other than that I have no symptoms.

The last time I had this problem was after my last visit to my grandmothers house. I went to my doctor, got tested for gonnorhea, clamydia, etc. (urine and swab tests), was prescribed the medicine as a precaution, however the test turned out negative. My girlfriend had the same tests and had negative results as well.

I have no allergies other than to strong soaps and perfumes, both of which my grandmother has in her soap. (I brought my own soap to plan ahead this time, however they shared the same soap boat).

My father and mother both have excema quite badly, my father had it very badly on his legs, and my mother has it on her hands. I beleive I have it on my hands as well, and it makes my hands very dry and cracked.

Thank you for reading, hopefully you can shed some light on why this is happening.