Positives

• A Long COVID patient reported approximately 80% symptom improvement after the first hyperthermic ozone steam sauna session and feeling roughly back to normal after the second Lifeworkswellnesscenter.
  
  
• ME/CFS patients receiving 15-25 sessions of repeated thermal therapy in a related modality reported dramatic improvement in fatigue, pain, sleep disturbance, and low-grade fever PubMed.
  
  

Negatives

• Patients in the ME/CFS community caution that aggressive ozone or hyperthermic protocols can trigger severe post-exertional crashes lasting days, especially in PEM-prone Long COVID patients Health Rising.
  
  
• Patients describe brief lightheadedness, headache, and detox-like reactions in the 24-48 hours after a session Lifeworkswellnesscenter.
  
  

Hurdles & Side Effects

• Each hyperthermic ozone CO2 transdermal session typically runs $100-$250 at integrative clinics, with multi-session protocols often recommended Lifeworkswellnesscenter.
  
  
• Sessions are only available at specialty integrative clinics, requiring travel and 30-45 minutes of upright tolerance inside the chamber, which is impossible for many bedbound patients PubMed.