Rheumatoid Arthritis Support Group
Rheumatoid arthritis is a chronic, inflammatory, multisystem, autoimmune disorder. It is a disabling and painful condition which can lead to substantial loss of mobility due to pain and joint destruction. The disease is also systemic in that it often also affects many extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and...

"chronic hives or urticaria can occur with RA. Allergists recognize that chronic hives can be a symptom of RA. In one study, 24% of patients with chronic hives also displayed an autoimmune condition..... Other skin manifestations of RA include chronic hives, or urticaria. Studies have shown that up to 50 percent of all cases of chronic urticaria have a chronic immune component."
https://rheumatoidarthritis.net/living/skin-issues-associated-ra/
Another website says: "Skin disorders are twice as common in people with RA and other autoimmune disorders. ..Most people don't associate skin conditions with RA, but in fact, the skin is one of the organs commonly affected by this inflammatory, autoimmune disorder, and individuals with RA can be prone to multiple skin disorders." https://health.usnews.com/health-care/patient-advice/articles/2017-06-30/got-a-skin-condition-you-may-have-rheumatoid-arthritis
I am NOT a happy camper. Guess I'll also be seeing my rheumatologist about this dilemma. See if he has any suggestion, though he didn't last time. I cannot take this. It's 5:30 am. I'll try and go back to sleep. Been up since 4:15.
Allergist has me on Zantac, Zertec and Benadryl. Don't know if it ever helped or just ran it's course for SIX MONTHS!!
My questions is: If it's caused by RA, why when I'm in remission? Should I add back MTX? Questions I will be asking my Rheummy ASAP.
I can only imagine how uncomfortable this is. Hope they figure something out.
Too bad it's rare and no doctors in my area. Will have to hope my Rheumatologist is willing to help me get testing, but there are no tests that can definitively diagnose it.
I am feeling totally OVERWHELMED having something else to deal with whether it is Mast Cell or "just" chronic hives,
I know there is a doctor who specializes in it in Boston. I can't remember where you are exactly. I really hope this isn't what you have though, because it can really make you miserable.
I'll keep looking.