What can I do for drainage/very runny nose 3 weeks post septoplasty and turbinate reduction?

I got a septoplasty + turbinate reduction 3 weeks ago. Surgeon took a look at my nose 1 week ago, it looked normal he said. Big issues with drainage/runny nose everytime i just move a bit. Walking around, etc. This is a problem i am a semi pro cyclist, when i ride its gets very runny. Its like i got a huge production of mucus from the nose... Surgeon said to stop cycling, and any activity. But thats simply not an option any longer given its my profession. Is this normal? and what can i do?