<s>[INST] Hi. I used to be a competitive swimmer and I am currently a lifeguard. A couple of months ago I noticed that after being in a chlorinated pool my foreskin turned red, swelled up and became very itchy, usually the night after I had been swimming. My doctor initially though it was Thrush and gave me Clotrimazole 1% cream which soothed the itching but did nothing else. He has now given me Betamethasone Valerate 0.1 % and told me to apply right before and right after swimming but this does not really help either. Just wondering if you had any ideas? Thanks [/INST] Hi,Redness of the foreskin can be as a result of candidal balanoposthitis or allergic reaction to the chemicals specially chlorine used for cleaning the swimming pools. For candidal infection oral Fluconazole is the treatment of choice while in cases of allergic contact dermatitis one can use topical steroid. Hope it helps. If you have any other question please do not hesitate to contact us.Regards,Dr. Atishay Bukharia </s>