The best way to prevent acute tonsillitis is to avoid people who have strep throat or any of the bacterial or viral infections that can lead to acute tonsillitis.
A person can get acute tonsillitis by:
There is no way to prevent subacute or chronic tonsillitis.
Usually, no significant long-term effects result from any of the three forms of tonsillitis. However, difficulty swallowing or breathing during sleep can result if the chronic infection causes enlargement of the tonsils. The healthcare provider may recommend a tonsillectomy, or removal of the tonsils, if there are recurrent infections or difficulties with swallowing and breathing.
Strep, diphtheria, and Epstein-Barr infections are all contagious.