<s>[INST] for the third time in the last 2 mths i hav an irritation on my scrotum and penis . it begins with an unbearable itch that only intensifies and skin sensitivity around tip of penis . the top of scrotum on the sides are white and the penis jus gets red and almost like blue coloration in some places . the only thing coincidental ios that i also hav a n itchy blister n the exact same spot on my wrist that came up at same time lasat time and more importantly i took bactrim for another problem both times and within the day problems began [/INST] Hi. Welcome to Chat Doctor . I have gone through your query and can understand your concerns. As per your complaint it seems that you have a fungal infection in the scrotum and penis, and it seems to be secondary to antibiotic intake that is Bactrim that you have taken every time you experienced the symptoms. It seems to be Subcutaneous Thrush leading to the symptoms of burning, redness and itching severely. I would suggest you to consult an Internal Medicine specialist and get evaluated and a thorough clinical evaluation and investigations like urethral swab culture can help in diagnosis and treatment can be done accordingly. You can be advised to apply antifungal ointment over the infected areas and along with it an oral antifungal medication course like Fluconazole can help. In case if you are sexually active or married the same treatment can be given to your wife/partner. Along with it take probiotics like Yogurt and also keep the area clean and Chat Doctor. . Take Levocetrizine for itching and redness. Hope this information helps. Thanks and regards. </s>