Sinus nose block. Mucus / plghem faster?

Dear doctor I am suffering from nose block and nose block associated throat irritation, congestion & loss of smell. Please not this is not at all covid 19 symptoms BECAUSE SINCE last 25 + years I am facing this issue every year whenever sinus is extreme. Generally this issue goes once phlegm / mucus is coming out (more than handful in some intervals) after some days of sinarest medicine , otrivin drops and steam inhalation. Some times it takes 10 days some times it may go up to 1 month. And last 3 years I don't have cough in such circumstances. This year weather is slightly cool comparing to earlier years. Please let me know is there any antibiotics or alternative medicine which helps to drain mucus / plghem faster? Please mention medicine with course.