These are 2 of the lymphoid tissues in Waldeyer's ring (including adenoids or vault tonsils, tonsils or palatine tonsils, eustachian tonsils, and lingual tonsils) that are responsible for recognizing bacteria and creating antibodies to destroy them when they re-invade. Because of their important role in the development of the immune system, adenoidectomy and tonsillectomy should not be performed indiscriminately.

Acute rhinopharyngitis in children is often caused by viruses, the most common disease in children from 6 to 8 months old. To help families know how to care for children with acute rhinopharyngitis and know the unusual signs that need to see a doctor immediately. Below are instructions from Professor Dr. Pham Nhat An - Director of the Pediatric Center at Vinmec Times City Hospital.