Hello Doctor, After bursting crackers and because of the smoke, next day morning my throat started feeling discomfort, my nose was blocked, runny nose and sour throat and I am feeling low. I tried taking Levocet tablet last two nights but still I have blocked nose and dizziness. Could you please suggest if there is any better medicine. I have had 2 doses of Covishield vaccination 2 months back. I have been taking nasal spray for Allergic rhinitis. Thanks.