Myabe some sore of allergy to mold or plant spore. A1lergy test? Maybe your doc would try zrytec for short term if they think temporay allergy. I never heard of it but lots of oct nov running noses
My son has the problem of swollen cracked lips occasionally, we have found that this is usually caused by lack of fluids, we use Carmex, a lip balm, and make sure he drinks plenty of water. Check his blood work and see if his endocrine system is in balance. At 15 he was beginning to secrete the male hormones and these need to be in balance. Winter weather is a lot drier and this increases the need for fluids, we drink more during warm/hot weather, also being near the Ocean , means you deal with more salt in the system, this will dry out tissues also. A large tongue is not usually the problem, our pediatrician told us the tongue is normal but the mouth is smaller. It is very comman for the tongue to protrude from the mouth, we just keep telling our son, "Tongue in mouth please". He has been so conditioned now, that it is very unlikly that his tongue is outside of his mouth. The Carmex will heal the lips if applied often, even when they are not cracked. Good Luck