Warm salt water gargle.
Honey & Lemon Strepsils, sucked.
Honey & Lemon warm water Gargle.
One, ONLY ONE grain of 'Condy's Crystal', dropped into warm water, & GARGLE ONLY!
It's also known as Potassium Permanganate, which is POISONOUS, if swallowed!
My late Father did this every morning, & I never knew of his having a sore throat!
CHECK WITH YOUR GP THAT THIS IS STILL EFFECTIVE, though!
It's ages since I've had a sore throat, & a warm salt water gargle has usually stopped it!