When she takes ativan, she quickly gets relief - POTS goes away, constipation goes down, ability to eat and drink more freely, ability to walk, etc. Most surprising of all is how the inflammation in her mouth and lip areas go away and no longer react upon contact with water or other things.
I keep racking my brain trying to think of something that might help your mom and have a few more ideas/ questions for you.
1) You said that when she gets the IV Ativan, then she gets quick relief for a brief window in which she is able to tolerate contact with food & water.
So... I was wondering, when she was in the hospital and got the IV Ativan, was she ever able to try other mast cell meds within that brief window after getting the Ativan? I realize this requires having a supportive doctor on board (which is probably the biggest obstacle) but if she got the IV Ativan as a "pre-med" (the way that I had IV Benadryl when I was in the hospital for a week in 2015), then she might be able to "test" other meds (or foods) within that window.
I was wondering if she was able to test something like Ketotifen (mast cell stabilizer), or any other mast cell meds, while she was less reactive from the Ativan? If so, this might be something to ask the doctor.
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My second thought, was has she tried injectable Benzos (at the hospital)? I believe that there is an injectable form of Ativan (although I am not 100% certain). If so, than this might be something that could be administered at home (vs. an IV) if you had a willing doctor to prescribe it.
When I left the hospital in 2015, it was not an option for me to have a PICC line or MID line to administer IV Benadryl at home (long story, won't get off-track) so it occurred to me to ask the doctors about injectable Benadryl and it turned out to be a great option and allowed me to safely leave the hospital without having anaphylaxis. At that time, I was able to use the injectable Benadryl at home 30 min prior to eating any food (along w/ 8-9 other pre-meds). In my case, I was never allergic to water so I was able to swallow meds with no problem as long as the meds did not contain dyes or other things that I was allergic to at that time.
I realize that doctors would be much less likely to prescribe an injectable Benzo than injectable Benadryl but am wondering if they would even prescribe a VERY small amount (even like one dose per week) so she could try it?
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My last question (for now
) was how does your mom do with steroids? I am NOT endorsing them as a long-term solution, but has she ever gotten relief from the intense inflammatory/allergic reactions from Prednisone or Dexamethasone? I was just curious if steroids have brought her any temporary relief like the Ativan does?
Edit: Also does your mom have an EpiPen if her lips, mouth, throat, etc, were to close up from angiodema?
Edit #2: I wanted to add (in case it is helpful), that I ultimately found a solution in my case (Ketotifen, as mast cell stablizer, and Atarax as my "rescue med"). Then high dose IVIG re-set my immune system and I have not had an allergic reaction of any kind (let alone anaphylaxis) in over four years. But it was maddening trying endless things that did not work back at that time. I required other treatments to put the POTS and neuromuscular issues into remission. And I am having Endocrine problems that are flared up now that I am trying to resolve. But I believe that anything that makes even the smallest improvement is worth pursuing to get some relief. You are doing an amazing job to help her