Quercetin is a zinc ionophore like Hydroxychloroquine and can be bought as a supplement online (hard to find over the counter) and is also found naturally in foods (google for specifics). It opens a pathway for zinc, a potent antiviral, to enter the virus. Vitamin D and Vitamin C are helpful. Most times an antibiotic (azithromycin) is added and I believe that is to prevent things like bacterial pneumonia and other secondary infections.

Dont panic though, most likely you have a cold or the flu. Just use common sense and you will be fine.