During the post-surgery healing process, the intranasal tissues are quite sensitive and need to be protected.
It is strictly forbidden to blow your nose during this critical period. Blowing the nose can suddenly increase intranasal pressure, causing bleeding and damage to the healing tissues.
Note: During this time, you should only clean your nose with the ocean water sprays or washing kits recommended to you.
After 1 month has passed since the surgery, you can blow your nose gently without forcing much.