What could cause something like furuncle or insect bite on the middle part of a penis?

Hello,

Welcome to icliniq.com.

I read your query and understand your concern.

Firstly, I would suggest you stop using a combination cream of Betamethasone, Gentamicin, Tolnaftate, and Clioquinol. It is a combination that is not right for your condition. You may replace it with Mupirocin ointment. Consult your specialist doctor, discuss with him or her, and take the medicines with their consent. Kindly let me know the number of lesions you have and if they are itchy and painful, if there is any redness or burning sensation. This will help me differentiate between folliculitis, herpes, and insect bites.

I hope I have answered your question. Do write back with the answers so that I can guide you better.

Regards.