Thanks for posting your query. I can understand your concern.
I request you to take a picture of the rash and send it, so I could have a look and give my opinion regarding the rash. It would be difficult to comment on the rash without actually seeing it as in dermatology most of the rashes are in patches etc.
You could reply as follow-up and upload the pictures.
Thank you for asking your query at DoctorSpring.
I have asked for our Dermatologist / STD Specialist opinion in your case. I will update you once I hear back from the MD
(Please note, this Specialist upgrade is Free)