My 18 month old has swollen gums upper & lower and upper lip is a little swollen as well. His mouth hurts and he tries to eat but only takes one bite and says ow and won t eat anymore. We took him to the dentist and he s on a rx for amoxicillin but he wasn t sure what was causing the swelling. He has a mild fever and we re giving him advil for pain & inflammation. I also noticed tonight he has a few small redder than usual spots on his tongue, almost like he ate something sour that irritated his taste buds. His hands and feet are not red, I checked in case it was hand, foot & mouth disease. Oh and he s not sleeping well at night, he wakes up every couple hours but he s still very active during the day. Any idea what s wrong with my little man? Thank you!!