my son is 7 years old, he was having fever, sore throat, running/stuffy nose, last night he was suddenly itching the whole body, redness all over the body, swollen face, his feet, legs, hands and arms were painful, I thought he was allergic to something, i gave him allergy medicine, and also a pain reliever, he was better this morning, but his face is still a little swelling, do i need take him to see doctor? What can i do to make the face swelling go away? thanks so much