If Covid becomes a seasonal thing (very possible), we will need more efficient treatments, too. For everyone who cannot either get the vaccine at all or didn't manage to get the booster shot on time.

Fortunately it seems lately that some treatments do provide relief to people who are already sick:

https://www.nature.com/articles/d41586-021-00650-7

https://www.dw.com/en/asthma-drug-brings-hope-for-covid-19-t...