Is spraying saline solution good on transplanted hair? I was told to do this following surgery and that it helps with itching?

Yes, this is common to prevent the grafts from drying out and to prevent itchiness, but not a mandatory practice.

There are several ways to manage grafts after surgery, spraying with saline a simple and common one.  During the first few days after surgery it will help keep your grafts moist and help with itching.  If your surgeon did not recommend this and you want to try it, check with the surgeon first.

It can be helpful in the first few days after surgery to keep the implants moist and well hydrated so they do not dry out as they are settling in to their new location.  We do have our patients utilize a spray the first couple of weeks after surgery.