With regard to Ur history, u have allergic Rhinitis with acute sinusitis. With antibiotics ur sinus got cleared but the allergic rhinitis thing still persist. U need to get CT PNS to rule out any remenent sinus infection or polyps( common in allergic rhinitis)
Next Steps
continue with Nasal Spray and antibiotics if acute cough or purulent discharge frm nose.
Health Tips
consult ENT Surgeon ( atleast online over a call or video chat)