Hi, may I answer your health queries right now ? Please type your query here...I have been on inhaler Seroflo 250 twice and Xyzal tablet for quite some time after severe asthma.For last about 10 days,I have continuous throat pain and a feeling of swelling in the throat, though the cough has reduced a lot, whenever I cough I have a choking feeling and I really gasp for breath. The choking is very severe for 10 - 15 seconds and I can neither breathe in through the nose nor the mouth. It takes a minute or so to calm down to normalcy.