I treat viruses with echinacea, 1 capsule twice a day for up to 6-7 days, then stop. Plus 50mg zinc, twice a day, for 3-4 days, then once a day. Plus vitaming D3, 1000IU twice a day for 3 days ONLY, then continue 1000IU once a day. Continue this until 3 days without symptoms. Get lots of rest and make sure to drink 64oz of water a day. 1. Stay away from Nutrasweet, sucralose, aspartame, they kill your gut bacteria which is critical for good health. 2. Stay away from all processed sugar as that kills gut bacteria also. 3. Use echinacea for 5 days in a row, then stop for 5 days. 4. Eat plenty of fresh vegetables, people don't get enough of those. 5. Get some exercise or at least stretching. 6. Keep warm. 7. Keep humidity at least 35%. Low humidity dries out the sinuses and the sinus mucus is the primary barrier for pathogens. 8. Stock up on cough supressents like dextromethorphan. I like the combo 12-hour pill of guifenisen and dextromethorphan. 9. Stock up on any asthma meds before you need them. Pay cash if you need to as pharmacies will run out of them.