Thanks for your query.
From the information provided, you are suffering from strep infection of the throat or, a fungal infection
(in view of whitish mucus layer).
A 7 days' course of antibiotics, anti-inflammatory pain killers (such as, ibuprofen
), saline and antiseptic mouth gargles will improve --> heal the condition.
Consult a private doctor, who will prescribe the appropriate drugs in effective doses.
Dr. Rakesh Karanwal