###Human: What causes pain and red rashes on glans penis? ###Assistant: Hi. You have erosions on the glans penis that is more consistent with candidal balanitis, other possibilities are chancroid, herpes. Please stop using Surfaz SN, it has steroid in it. Steroid helps to bring down the inflammation, itching will get better but it will not cure the fungal infection further makes the fungal infection worse. I believe that is what happened for you now. Can you please answer these questions so that I can rule out other possible conditions and suggest you appropriate medications. When did it start? Do you have similar red rash on foreskin as well? Any history of unprotected sexual intercourse? Any history of white discharge in the female partner? Did you have fluid filled blisters when it started? Is this the first time you are experiencing this kind of lesion? Do you have any allergies to medications? Do you have any other medical conditions? Diabetes? Do not use hot water for genitals. Always use lukewarm water.