Allergies from weather and pressure changes

I had the worst allergies from the weather change and pressure changes. I developed a tickle in my throat from the nasal drip and it felt like I had a hair stuck in my throat. That developed into a cough that wouldn't go away. I tried my rescue inhaler and mucinex and my symptoms barely went away. I finally went to urgent care and they put me on 5 days of 20mg prednisone and told me to take my rescue inhaler as needed. I am on day 4 of the prednisone and I was starting to feel better yesterday but my couph returned today. Should I wait out the last day of prednisone or should I go back to urgent care and see what they say????
Thanks