Welcome to HCM
In this season viral fever
is very common and ulcers in mouth may result from viral fever itself and as a result of Nutritional deficiency
and Antibiotics also may cause them.
Such ulcers are painful and make eating and drinking difficult.
As recovery takes place they will also improve some relief may be by Local anaesthetic
agent like mucopain and keep mouth clean by mouth wash like antiseptic chlorhexidine
B.Complex supplimentation may also help a bit.
Good Luck to you