For the second time I have suffered a rash on the glans of my penis in this year. This time the rash was more intense in color. There has never been any itching or pain associated with this rash. But, just a scary looking color. I was tested for all STD and STI infections before a month and it was negative for HIV, chlamydia, gonorrhea, syphilis, HPV, etc. This was completed by full blood test and urine sample. I am 36 years old and married. My sexual partner has been the same for the last 10 years. I do have a tight foreskin, which cannot be retracted the whole way over the head of my penis, but can come back about 75% of the way. Over the past three weeks, the rash has subsided and the redness is slowly going away. I have used Hydrocortisone 1% for two days and Canesten cream for two days. I also have Trimovate cream, which was prescribed to me for the first occurrence of this rash earlier this year.My main concern is penile cancer, although rare from what I have read, it worries me that this could be a tumor of some sort. Or is this a case of balanitis? The other concern I have is the white markings on my penis, which have developed over the past one month. My personal hygiene is excellent. I do not use soaps on my penis glans and just warm water twice a day. I have attached some images of the rash. I would appreciate any advice.