I like Claritin or Allegra.
I do not like, Zyrtec. Makes me moody and tired.
And, for my Mom as well.
Now, about his 'wet' cough.
Has it been, actually diagnosed, that this is due to allergies? And not some other pulmonary based condition or infection???? Or is it his Sinuses???
The point being, to get a proper medication, for his condition.
Or if he has some kind of infection.
Wet coughs... can be caused by: Sinus post-nasal drip. OR, an actual lung based condition. Both of which, can be due to illness/viral/bacterial or allergy points of origin.
So, discern where his cough, is originating, from.
AND where is the mucus, coming from? Because, that is why... he has a 'wet' cough.
Xopenex by the way, is not for 'allergies' per say. But for Asthma. It is a "Bronchodilator." Meaning, with asthma, the bronchial tubes, constrict because it is inflamed. Hence a person cannot breathe properly. Hence the inhaler, works to open up, the airways.
It is NOT for mucus secretions, nor stopping it.
I know this, because I have Asthma. And I take Xopenex.
Now about allergy OTC meds.
Each one, affects each person... differently.
So keep that in mind.
It is not a one size shoe, fits all.
Also, having a wet cough for so long... well that would worry me. Because, if it is lung based, then things like Pneumonia or Bronchitis can occur too.
Again, I know this because, I have Asthma. But this is a lung based origin of coughs.
Again, where is his mucus coming from? Nasal or lungs?
Inhalers like Xopenex, won't help Sinus issues. Only lung issues.
Next: I would get an air filter/purifier for your home or your child's room.