What causes a circular rash on back?

Hi,

Welcome to icliniq.com.

I saw the pictures (attachments removed to protect the patient's identity). I can see red oval to circular lesions distributed on the back. We can have two differential diagnoses here. Pityriasis rosea is a viral infection due to hypersensitivity to either the upper throat or the urine infection, or colored food.

Pityriasis versicolor, high humidity, and excessive sweat will induce this. It is a mild yeast infection. Both differential diagnoses are harmless and non-contagious.

Please get back to me if you need further help.

Thank you.

Hello,

Welcome to icliniq.com.

I suggest the following. Apply any brand Ketoconazole 2 % lotion on affected areas twice daily, 15 minutes before bath on wet skin, then after bath, dust any brand Clotrimazole powder on it. Please do it for 15 consecutive days. If you get Tacrolimus ointment 0.1%, apply it to the affected areas overnight after applying a drop of moisturizer.

Use it until the patches become light brown. We can treat both differential diagnoses simultaneously. We can confirm the diagnosis by performing a KOH (potassium hydroxide) mount to visualize fungal filaments. I suggest you take lemon juice twice daily and avoid hot and humid conditions. If any stress or overthinking, try to get out of it. This will enhance natural immunity.

I hope this was helpful.

Thank you.