Whats The Cause Of A Blister In My Throat Whats Tonsilitus?

Whats tonsilitus? - whats the cause of a blister in my throat

A few days ago I woke with a sore throat very badly and she has now won steazing and headaches when I looked in the mirror, I noticed the back of my neck was swollen and it had little white spots, almost like bubbles, I tried to Google and told to swallow tonsilitus way and therefore its difficultt, but it could be the cause of a bad law, that's cold? Anyway, I've never seen a tonsilitus before or peoble with my throat and I do not know what to do, there's nothing I can take without going to the doctors? and how long it will be my last as his swollen throat, makes me mad
thank you xx