Hello doctor, I am facing issue with dryness, light burning and itching on my penis. I had tried to apply Vaseline to keep it with moisture. Now dryness is not there but light itching and sometimes light burning is there. Now my history, I am in sexual relationship with my girlfriend and generally we used to use protection every time but we had unprotected one last month. After few days, penis skin was reddish and burning just for a day and then became normal. Now, after almost a month, I am facing this issue. Is it a kind of any STD? What care needs to be taken for this? Is this any serious issue?