Thanks for writing to H.C.M. regarding query for throat discomfort after swallowing hot food.
I have gone through your query and would like to tell you that it is a type of thermal burn and inflammation of base of tongue and pharynx.
You need not to worry these lesions heals very fast, you now prefer cold
and liquid diet
or you can take semisolid also but spicy food should be avoided for good recovery.
Regarding medication you can take - Antacids, analgesic
and antiseptic mouth wash and garglings.