URI. The nasal congestion does cause the mouth breathing.. The lymph nodes i suppose are not he neck and most likely are reactive lymph nodes. 90% of URI are viral, but if he is having fever or chills, it is best to have him see his pediatrician for proper diagnosis. You can give antihistamine for the congestion and fluid to avoid drying.
Had swollen lymph node for about 4 weeks. Body and joints are slightly achy from time to time. Very mild nasal congestion. Loose stool.
See doctor. Your condition requires medical attention and you need to consult your doctor ASAP. Read more...