Got negative for rapid covid & mouth swap of influenza & strep. told i might have bacterial & most likely viral infection; given cetirizine. i was exposed to covid 9 days ago and got only a minor irritatable throat on my 7 day. could this be covid?

If you have the antigen test made by Abbot, the sensitivity can be as high as 90% but false negative is much higher with tests made in China. However, if you are truly infected with covid-19 with the exposure 9 days ago, you are now almost free from covid symptoms so covid or other viral illness is almost the same. There is nothing to worry. I ain't sure why you are given anti-allergic med though.