@godlovesatrier - I've had 3 different types of sore throats that I can identify. In the early stages of getting ill, I would get a sore throat every time I got over-tired. Also my feet hurt with a burning feeling, as though I had worn ill-fitting shoes, only I hadn't. I eventually identified this as being linked to my adrenal glands and a pantothenic acid deficiency, with the help of a book by Adelle Davis on nutrition. I started taking pantothenic acid, which helped. Be aware though that pantothenic acid can deplete taurine and taurine helps protect the brain against glutamate-induced excitotoxicity (I developed a severe sensitive to msg in all its iterations after many years on pantothenic acid, which was reversed when I stopped the pantothenic acid and started taking taurine).
I'm also prone to strep infections, and for those I use colloidal silver. Antibiotics also work of course but the colloidal silver seems more effective. At one time I had strep with such frequency I would have had to take ABX almost constantly, not a good thing.
And then there are sore throats linked to EBV and other viruses. For this I use andrographis and echinacea.
I don't get blood work each time I get a sore throat. I just go by what seems most likely, and if the andrographis and echinacea don't do the job, then I add in colloidal silver which usually knocks it out;
Have you been tested for strep?