Prednisone with Vertigo

I visited the ENT today and ended up crying, feeling pretty embarrassed about it. He told me everything is due to allergies: the ringing in my ears, the fullness, the vertigo attacks, and so on. I find it hard to believe since I’ve dealt with allergies my whole life and have never felt this unwell, but okay. He prescribed prednisone for me—does it actually help?