Hello,
Those were the symptoms of Allergic rhinitis many times it presents with a blocked nose only.
1st thing is u need to avoid the blast of air and especially cold air wherever possible.
Start steroidal nasal spray 2 puffs twice a day in each nostril.
Tab Montek FX one tablet at night one hour before sleep for 5 days.
Gargles with lukewarm water 5-7 times a day.
Next Steps
consult nearby ENT for Nasal endoscopy.
Health Tips
Avoid the blast of air and especially cold air wherever possible.