yeah, we're discovering quite a number of people have these lingering effects MONTHS AFTER getting over covid , okay so u may not be a longhauler but see if u can get ivermectin as well, it seems to help with longhaulers, its a pretty harmless drug and it can lessen the post covid symptons. but for ur congestion try NAC (N-acetyl cysteine (NAC),(its just form of amino acid found in high protein foods like chciken etc but the pill is concentrated so u get a higher dozage , u can get it off amazon or probably duane reade pharmacy , i have the "NOWFOODS" one for like $16