Hi I'm Just Wondering If You Can Help Me Out

Hi I'm just wondering if you can help me out it's been going on for roughly 2 months. It started off with an itch and a red rash to the base of my penis tip. I started worrying so I went and got tested for for a few STI aswell as a blood test which all came back negative. Since then the rashs till comes and goes and know I have skin peeeling under my forskin. I am not a unhygienic person in fact very clean and this is starting to worry me also know and then I get the odd stinging pain and currently atm I have small red dots around my penis that fade then come back also a little sore where my urine comes out of