Hello all. I have had hives all over my body in as many as 15 different locations at the same time. I've tried singular, zyrtec, Claritin, benadryl, oatmeal baths and nothing helps in the least. In the last day I've also experienced headache and nausea. No new foods, drinks or environmental changes.
Please note I also have multiple diseases such as Lupus, Posteral orthostatic tachycardia syndrome, gastroparisis, etc.
Any help would be appreciated.