Two more things. He has a nasty cough allergy/asthma-like only from Oct thru Jan. No OTC allergy stuff would help and only Singulair works. He also has had monthly migraine headaches that lead to vomiting for 1 1/2 years. Neurologist said he does not need MRI or meds. But just to drink fluids and eat regularly. I didn't want to go to allergist only to be prescribed more meds. Headaches have been year-round and only on Singulair for last two fall/winter seasons. Thanks for any input or pointing me in a direction to research.