Tonsils and adenoids are often affected by allergies and colds. Sometimes I even get a stinging sensation when eating or drinking when mine are suffering.
That area has quite a work load to handle when fighting a foreign invader like viruses and allergens, so sometimes it will get over-loaded and swell up.
I would give it up to a week to see if it gets better. If it does not, you may have a resultant ear or sinus infection. Have your ears or nose felt clogged still?
Drink plenty of fluids because this will help your glands to clear out.
Best of luck!
Lindaru
Enlarged lymph node 
Linear Mode
