I'm having a tough time with my breathing because of something that's leaching into my throat, nose, and eyes, but especially my throat. It's causing me to cough really badly, sometimes to the point where I vomit. I even have a weird voice when I breathe. I've seen a few doctors, and they say it's allergies, but they haven't done any tests or analyses. The meds help a bit, but once I stop, the same problem comes back, or even gets worse. They've given me Motemac FX tablets, Furamist nasal spray, and some syrup, but nothing seems to be fixing the root cause. I'm confused about which doctor I should see to finally get to the bottom of this. Should I be asking for specific tests or analyses to find out exactly what's wrong with me? Any advice here?

Patient is advised Ige test,X-ray paranasal sinus ,esr and C-reactive protein tests.Also Azeflo nasal spray 7ml in both the nostrils is advised to the patient.