Thanks for posting your query.
You are most likely suffering from sinus infection
with involvement of tonsils and associated secondary bacterial infection.
Presence of mucus secretion, postnasal drip, swollen glands, sore throat
suggests the diagnosis.
You should consult with internal medicine specialist and ENT surgeon simultaneously and should go for thorough check up.
You should take complete antibiotic course, mucolytics, decongestants, multivitamins and anti inflammatory medicines on written prescription.
You should avoid oily and sour food, cold
drinks and yogurt.
Perform gargles three times in day; a glass of lukewarm water with a pinch of salt.
Dr. Mayank Bhargava