Strange Effect 10 weeks post radio frequency turbinate reduction surgery: Why cold feeling in nasal passage a few times a day?

10 weeks ago I had minimal radio frequency turbinate surgery on my left turbinate: Just 1/2 lesion reduction on one turbinate. But a few times daily for 15 minutes or so, usually after I've cleared my nose, even gently, the nasal passage feels unusually cold. A sensation I've never felt before. I don't feel like there's too much air going through. It just feels cold for brief periods. My ENT stresses that the turbinate definitely is not too small. So what's going on? Still healing?