Dermatology Questions? Ask an Online Dermatologist.
Thank you for posting your question and having the foresight to include a picture. This does not look like a yeast infection to my eye.
Is there a history of skin disease in either you or your family?
If not this appears more consistent with an entity called lichen planus.We do not know the cause of this, but its occurrence on the penis is not rare. It is not a serious condition but can be troublesome to cure. My recommendation for treatment would be Hydrocortisone ointment 1%. Put saran wrap over the area at night.
I would be happy to answer further questions.
You are welcome. You may need prescription strength medication but that is worth trying.