Long COVID with bad MCAS, somewhat better after mushroom tea and elimination diet
- Condition
- Long COVID
- At worst
- Not stated
- Ill before improving or writing
- 2 years
- Last post
- Oct 2026
In their words
- Condition: Long COVID
bad MCAS and Long Covid, all the symptoms
In context ↗ - Now: Somewhat better
For the first time I actually feel better and it has lasted at least a week.
In context ↗ - Began after: COVID
bad MCAS and Long Covid, all the symptoms
In context ↗
Summary
A Reddit user two years into long COVID with bad MCAS described all-day brain fog, painful bowels that barely digested food, and hand eczema. After making tea from reishi, lion's mane, chaga and cordyceps extract they felt better almost instantly: clearer on waking, less gut pain and eczema slowly improving, still better a week later. An elimination diet was the only thing that helped their MCAS.
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What they tried
Also tried
Their words about each treatment
- mushroom extract tea (Reishi, Lions Mane, Chaga, Cordyceps) · Helped a lot
For the first time I actually feel better and it has lasted at least a week.
In context ↗ - elimination diet · Helped
I did an elimination diet, the only thing that really helped with MCAS.
In context ↗
Approaches: Supplements
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 | After |
|---|---|---|---|
| onset | long COVID with bad MCAS, all-day brain fog and painful bowelsI've been really struggling, bad MCAS and Long Covid, all the symptoms.In context ↗ | Moderate | |
| 2026-09-01 | started mushroom extract tea and felt better almost at onceFor the first time I actually feel better and it has lasted at least a week.In context ↗ | Mild | AHCC and medicinal mushrooms (reishi, shiitake, maitake) |
| 2026-10-21 | elimination diet helped the MCASI did an elimination diet, the only thing that really helped with MCAS.In context ↗ | Mild | Elimination diets (other) |
Adverse events
- AHCC and medicinal mushrooms (reishi, shiitake, maitake)“It kind of felt like the start of a real mushroom trip. but after a few days its not that intense anymore” In context ↗ Side effects
Symptoms mentioned
Their words about their symptoms
- Brain fog
Normally I'd wake up super brain fogged and it would take all day to lift
In context ↗ - Gut problems
My bowels were super painful and barely digesting food.
In context ↗ - Mast cell (MCAS) & allergies
bad MCAS and Long Covid
In context ↗
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