You might want to check this out for covid.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7833340/

Here is a summary of the above study. I have Claritin on my shelf, though I never use it any more since changing diets. Used to take it all the time. Loratadine is the generic name.

https://market-ticker.org/akcs-www?post=243683

 A year ago there were doctors saying this virus is easily killed. The trick to kill it is treating it early in the replication stage instead of waiting till the body is full of dead virus then going to the hospital for the complications it presents. EARLY TREATMENT AT FIRST SIGNS OF INFECTION.