What Does A Large Rash Under The Breast Indicate?
Possibility of Herpes Zoster, Upload a Picture
Detailed Answer:
Hello and welcome to healthcaremagic
I am Dr. Kakkar. I have gone through your query.
I would like to rule out Herpes Zoster. As you describe, it is a unilateral rash with pain and discomfort.
Another possibility is Intertrigo which is inflammation of the body folds e.g axilla, submammary folds, groins etc due to rubbing against each other, sweating causing the skin to get macerated and weak and thus prone to irritation from rubbing. There is diffuse redness and burning and the area feels raw. There might be foul smell. Treatment of intertrigo is with twice daily application of topical steroid + antifungal cream combination along with keeping the area dry/moisture free. Using an antifungal dusting powder regularly in the body folds is recommended.
However, Herpes Zoster presents with painful fluid filled lesions, which are usually arranged in a stripe pattern on one side of the body
The fluid filled lesions in Herpes Zoster may rupture to form raw areas which might get secondarily infected with bacteria, thus giving rise to increased pain, discharge and foul odor.
I would be able to confirm the exact diagnosis if you can upload a clear digital Image of the rash.
Regards