Thanks for posting your query at DoctorSpring.com. I can understand your concern.
From the redness that I can see in the picture, there are two possibilities
1. Yeast with mixed bacterial infection
2. Plasma cell balanitis which is a benign condition and is a dermatitis of the glans.
This is a link for your reference.
I would recommend application of mupirocin cream and clotrimazole cream mixed and applied on the affected area for a week. The yeast infection should clear with that. In case it doesn't I would recommend that you visit your dermatologist once. It will be best to examine the lesion physically before confirming the diagnosis.
Please let me know if you have any queries.