How does the SGB work?

How does the SGB work?

After SGB treatment, when your sense of smell (anosmia) and taste (dysgeusia) get better, it’s because the treatment restores the balance between two parts of your nervous system. This happens by blocking the overactive sympathetic part in your neck, which is responsible for head and neck functions. It’s possible that when this sympathetic part is too active, it disrupts important cranial nerves like the ones for smelling, facial movement, and taste perception, causing these issues.


Timing is crucial when using a treatment called SGB for long COVID-19 syndrome. If we wait too long, the body’s adjustment to the condition may make SGB less effective. It’s like dealing with a stubborn door. The longer you wait, the harder it is to keep it open. We’ve noticed that when SGB is delayed in people with other long-lasting post-viral conditions like Lyme disease or chronic fatigue syndrome, it doesn’t work as well compared to those with long COVID-19. They only see a small improvement, about 10-20%, with each injection.

Numerous research studies have demonstrated the effects of SGB in the modulation of the immune system and hyperinflammation.

86% of participants saw some improvement of their symptoms.

Symptom
Total reports
% relief
Shortness of breath
17
88
Cough
10
80
Fatigue
35
77
Chest pain
10
80
Joint pain
16
94
Tachycardia/palpitations
9
78
Symptoms worsen
27
27
Pins and needles
9
100
Diarrhea
8
88
Changes in taste/smell
18
56
Fever
1
100
Dizziness
17
77
Difficulty sleeping
14
71
Rash
2
100
Mood changes
21
21
Headache
16
81
Changes in menstrual cycle
5
80
Brain fog
33
79