Slight sore throat, had white patch on soft pallet, now they are red & on roof, mouth dry, sore, feels like something in back of mouth weird taste wha?

Dr. can check throat. New throat pain can be from a strep throat infection (antibiotics are needed), a cold or influenza (antibiotics usually not used), or from some other cause such as allergies or irritants. Usually, a person sees the doctor if the sore throat is bothersome, recurrent, or doesn't go away quickly (mainly to check for strep throat). Throat lozenges and Tylenol (acetaminophen) or Motrin can help decrease throat pain.