Long COVID histamine intolerance, somewhat better with antihistamines and somatic exercise
- Condition
- Long COVID
- At worst
- Not stated
- Ill before improving or writing
- 4 months
- Last post
- Jun 2026
In their words
- Condition: Long COVID
I have been having really bad histamine intolerance and possible MCAS out of no where for the last 4ish months.
In context ↗ - Now: Somewhat better
Antihistamines have helped me a lot. ... I can't even tolerate my safe foods now.
- Began after: nothing they could name
out of no where for the last 4ish months
Read from 5 of their posts and comments; links to the 5 this page draws on
Summary
The person reported about four months of bad histamine intolerance and possible MCAS, with food reactions and migraines triggered by hair washing. Antihistamines helped a lot, and a 15-minute somatic exercise stopped a food-triggered flare and kept it away all night. They planned to start regulating their nervous system; MJ gave them extreme anxiety and panic attacks even at micro doses.
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What they tried
What they credit
Also tried
Their words about each treatment
- Antihistamines · Helped
Antihistamines have helped me a lot.
In context ↗ - Benadryl · Helped
I use Benadryl to sleep at night and it surprisingly helps me feel way better
In context ↗ - H2 blocker (pepcid ac) · Not said
I also take an H2 blocker (pepcid ac).
In context ↗ - Mj · Worse
Mj gives me extreme anxiety and panic attacks. Even tiny micro doses.
In context ↗ - Epsom salt bath · Not said
I take an Epsom salt bath every night and I love it.
In context ↗ - somatic exercises · Helped
I just started doing somatic exercises and it's been pretty crazy how quickly it's helped.
In context ↗
Approaches: H1 antihistamines
Their path
How ill they were on the ME/CFS severity scale, estimated from what they describe at each point, with time counted from when the illness began. Hover or tap a point. Dates are when they posted. What the levels mean.
Show as a table
| When | What happened | Where they were |
|---|---|---|
| about February 2026 | histamine intolerance and possible MCAS beganI have been having really bad histamine intolerance and possible MCAS out of no where for the last 4ish months.In context ↗ | Mild |
| 2026-06-08 | antihistamines helped a lotAntihistamines have helped me a lot.In context ↗ | Mild |
| 2026-06-16 | food-triggered flareYesterday I started going into a flare after eatingIn context ↗ | Mild |
| 2026-06-17 | somatic exercise stopped a food-triggered flareI did a 15 minute somatic exercise video and it stopped the reaction and it didn't come back all night.In context ↗ | Mild |
Adverse events
- Cannabis (THC, marijuana)“Mj gives me extreme anxiety and panic attacks. Even tiny micro doses.” In context ↗ Mood or psychiatric effects
Symptoms mentioned
Their words about their symptoms
- Mast cell (MCAS) & allergies
I have been having really bad histamine intolerance and possible MCAS
In context ↗ - Headaches & migraine
waking my hair is a giant migraine trigger
In context ↗ - Anxiety & low mood
Mj gives me extreme anxiety and panic attacks.
In context ↗
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