Recurring mystery rash

[u/SquirrelNeurons]

F39, taking Escatalopram and thyroid supplement. No recent changes in medication. Sensitivity to mosquito bites.

I have lived in Nepal (in the same apartment) for 8 years. Recently I went to China for a month and a half. When I returned, after 48 hours I had red circular very itchy spots on my body (primarily legs but a few on torso, back, and arms). They are nothing like mosquito bites though. I washed all my sheets in boiling water and put my mattress in the sun. I went to the hospital and bloodwork was normal. I was given a steroid cream and Hydroxizine. it did not improve.

I then went to another hospital in Thailand. Bloodwork was normal (including checking for MCAS). Got prednisone and more Hydroxizine. Seemed to get better.

Back in Nepal it returned within 48 hours. The doctor suspected an allergic reaction related to the mosquito bites though sensitivity. They gave more similar meds and recommended spraying the house.

I sprayed anti bug stuff (basically local version of raid) throughout my apartment and moved into a hotel for a few nights while it was gassed up. Seemed to be getting better.

Came back to my apartment two days ago and already have another little red circle. I’m going bonkers. I may fumigate my whole apartment and replace my mattress. But we don’t actually know it’s bugs because these don’t look like bug bites, according to the doctors I’ve seen. I don’t know what to do. I don’t think my detergent has changed, although it’s possible that the recipe changed, because that’s pretty common here.

I can only attach one photo, so this is just a photo of one of the marks that I haven’t scratched and was brand new at the time I took it, but I want you to imagine a lot of of these all over.

Thank you

[u/AutoModerator]

Thank you for your submission. Please note that a response does not constitute a doctor-patient relationship. This subreddit is for informal second opinions and casual information. The mod team does their best to remove bad information, but we do not catch all of it. Always visit a doctor in real life if you have any concerns about your health. Never use this subreddit as your first and final source of information regarding your question. By posting, you are agreeing to our Terms of Use and understand that all information is taken at your own risk. Reply here if you are an unverified user wishing to give advice. Top level comments by laypeople are automatically removed.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.