Hello sir,my 3 year old child has a small ghanth (gilty) in the neck.what will we do

A. It's usually nothing to worry about. Swollen lymph nodes happen most often when your body is fighting a viral or bacterial infection like a sore throat or glandular fever. Swollen lymph nodes can also happen if a part of your body is inflamed – for example, because of an abrasion, a burn or an insect bite.