Hair transplant/wearing beanie/sweat a lot/gym/38 days post op.

I am 38 days post op after my hair transplant. I am a regular and heavy gym goer. I haven't been going to gym since all this time and now I think it's ok for me to hit the gym again. My doctor asked me to resume my gym after 3 weeks but I avoided it for more than a month. Can I wear a beanie and workout? Can't say it's tight but it's not lose either. I sweat a lot. I hope it will not hamper the transplanted hair. Please help. Thank you so much in advance.