Welcome in H.C.M.
I have gone through your query regarding mucosal lesion of uvula
due to damage to soft tissue
in infection and cough
You are feeling excessive dryness in throat and is worried about healing.
Here I would like to tell you that mucosa of entire oral cavity and throat has tremendous power of healing if there is no infection or irritation may be physical or chemical. Therefore no need of worry, try to maintain oral hygiene
1- Antiseptic mouth wash and gargling.
2- Vitamins and antioxidants.
3- Boroglycerine locally in oral cavity.
I hope this will help you.