There are lots of anti-viral herbs and supplements on the market, however to treat the long haul depletion you need other supplementation such as B-3, glutathione, certain amino acids, histamine blockers, and an anti-inflammatory and low histamine diet. There is LOTS of good information in the Facebook Long Haulers group, with 90,000+ people from around the world sharing their stories and useful information. All the best to you!