I have problem of sneezing, running nose and more thick discharge of mucous from the left side nose in comparison to right side since 6th September 2021. There is no fever. I took zedex / bro zedex sf syrup, Allegra 180 and Azee 500 medicines. The problem is still continuing. It is more in the morning when I get up. Kindly suggest some suitable medicine for this. For last three days  I also took Cetrezine tablet 5 mg BD, but this problem is persisting. I got my Rt PCR test done, which was negative. Thanks for