Dermatology Questions? Ask an Online Dermatologist.
Whats your age ? Do you have any medical issues ?
Since when you have this problem?
Any other body part with similar complaint ?
Any recent change of undergarments or soaps etc ?
Can you post a picture here ?
Sorry for the delay.
From the picture it could be anything between simple bacterial infection to eczema to dermatitis or allergy.
Since anti-fungal cream didn't help it is less likely to be yeast infection.Sometimes it is just a reaction to what we eat or drink( this can happen at any age). Since you have checked for STDs , there is no need to worry on that front.NO pain/ itching is also against STD or fungal infection.
I would suggest you to use water based moisturizer for some days and avoid any chemical/ soaps over the region. Sometimes it is a skin issue which can appear and disappear of its own without any reason.
Eat healthy and stay away from alcohol and beverages for sometime.Just maintain a food diary to see the days when this flares up. You may correlate specific food/ drinks to flare ups. Avoid smoking( primary as well as secondhand).
Last resort would be low dose OTC steroid ointments for short duration. This usually helps but better be prescribed by a doctor in writing.
If it persists you should get an appointment with your dermatologist.
If you have any questions , please let me know.