Kindly visit or get a consultation with an oral and maxillofacial surgeon to rule out any postcovid complication. Mekena maybe die to anything. If there is any intestinal bleeding, pain killers should be taken with caution. Do not get advise online. Kindly ask his physician for safe painkillers until he can see a dentist
Health Tips
rinse with salt in lukewarm water after meals.avoid hot, cold and sweet food and drinks
an ice pack outside on the cheek may help