How many types of sore throat are there and which is the worst type? are there different types of sore throat? which are the worst?

Many types: Soreness can be due to infection - bacterial, viral, fungal. It can also be due to lesions, autoimmune reactions and direct irritation from foreign bodies. It can be a side effect of medication, of oral dryness. You should see your doctor if you are concerned.

Let me help: There are 3 main kinds of sore throat. 1-viral infections, from common cold, flu, this does not need antibiotic, warm fluid and gargle with warm water and salt, they go away in few days. 2- bacterial infections. The worst is strep throat, need medical attention. 3-injury to the throat. By yelling and screaming you could develop sore throat.