Red Penis for months , any ideas?

Hello, so it all started about 5 months ago where i was peeing a hell of a lot , and had a sore itchy penis. i did some checks for chlamidya gonnerea syphilis and HIV , and they all come back negative. but was given some oflaxacin and some canesten as it could of been a uti or thrush. Long story short it went away. however about 3 months ago i began getting irritation down there once again, so went back to the doctor who pescribed me Clotrimazole to help, whilst also testing my urine and getting me a HiV , however both of then come back negative and i still have a red penis, to the point where say i come out the bath my penis looks all wrinkley and dry, it burns sometimes but very rarely. any ideas? oh btw the sti tests i did were a couple of months ago and i havent had any sexual contact in about 2 years!

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I experienced this about a month ago. After having vaginal intercourse with my ex about 2 weeks later my penis was red and whenever i shower it would look dry and seems like the dry skin is peeling then after awhile they turn into cracks. I ignored it for almost two months thinking it was just the soap. Went to the doctor a month ago and he said it was yeast infection and gave me a pill and cream to use for a week. After a week everything cleared up. But whenever i shower my penis still seems red. I stopped using the soap and used just water to wash it and the redness has stopped. Try avoiding the use of soap to wash there