Hi my 4 year old son stop swallowing his saliva,he keep on his mouth for a few seconds then keep on releasing every now and then. pediatrician,ent doctor and neuro developmental cant see anything wrong. The latter rwfer me to occupancy theraphy,however I didnt go yet.Im thinking if that could really help.what is wrong with my son,even i told him to stop doing it,he just answered me mom I cant swallow,I dont want to swallow. Please help me what to do?