Allergy?

Adeline has had this strange cough/clearing of her throat off and on for a few years. We were told it was asthma, then we were told it was allergy related. The last three weeks it has been so pronounced. She was coughing and coughing and I had her on breathing treatments and it did not clear. I took her to the doctor and they thought it was allergies (again) and put her on Singulair and Zyrtec. She has been on both of these medications religiously, and is still clearing her throat.

I am getting very worried that this cough and clearing of her throat has nothing to do with asthma or allergies and is a vocal tic. Boy, our family has enough mental health issues without having to add a vocal tic to the mix.