Normal throat has abundant lymphoid tissue in the posterior (back) wall of oropharyngeal cavity apart from tonsils. These tissues get enlarged in upper respiratory tract infection. When they are enlarged they may appear like small cysts especially on the back of the throat associated with difficulty in swallowing and pain. Acute tonsillitis can have small white spots which are collection of pus in small crypts on the surface of the tonsils. When they are enlarged they may appear as cysts. Naturally, an infection especially due to bacteria will require treatment with antibiotics. Consult your doctor to see if it is any infection. Thank you.
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