Allergies rhinitis or sinus. It is csf?

Dear sir is it advisable to go for CT scan at this stage of lockdown and Covid situation? Also I would like to know allergic rhinitis can last for more than 35 days? First 5 days I used Allegra+Nobel cold. Later 10 days 3 anti biotics tablets daily one + montus kind of tablet+spray. Later 7 days cepodem 325 *2.+ sinarest+spray flutiflo. Still there is sometimes slight runny nose but it won't come Down , it won't run it's like minor cold or not surely totally watery. Can rhinitis last for 35 days? My situation contagious? I have no cough soar or headaches. Some pics added. Not sure it is csf? Yesterday one of the doctors asked me if there is drop by drip watery substance from nose. NO there is no such drops when bending head. Or even normal position. NO drops. Slight wetness deep inside. It won't come out even if strongly blow my nose. Morning time while brushing I try blowing and small amount come out I can see on brown paper which is not cloudy but slightly sticky. Not watery.