What is recommended, though not required, is rinsing your mouth or cleaning your teeth to remove smoke odour before prayer, as a matter of Islamic etiquette
This system, which more closely approximates typical smoking patterns, is applied in the morning and removed at bedtime
Other conditions such as loss of smell (hyposmia 37 , anosmia 37 ), loss of taste (hypogeusia 37 , ageusia 38 , specific ageusia 39,40 ), other single taste disturbances 41,42,43 , altered taste (dysgeusia 44 ), xerostomia 45 and trigeminal dysfunction 37,46 have also been reported in different sets of patients recovering from COVID-19
J Eng Appl Sci 72(1):128
"Bob" Dobbs and The Church of the SubGenius': Film Review | SXSW 2019"