FUE hair transplant. I am suffering from itching on my scalp

If you are having issues after surgery, you should contact your doctor.  Your doctor can examine you can give you treatment options.

Itching at two weeks is pretty normal after a transplant, so it may go away in another week or two. It could also be a side effect of the Rogaine, since that can cause some minor irritation as one of the side effects. If it doesn't clear up within a month post op or the itching gets worse talk to your doctor.

This case  is normal, as you have healing going on.You may use Antihistamine  tablets.  Additionally, medicated shampoo may help to remove scabs and control itching. This prickly feeling can occur for up to three months following your hair transplant surgery. During the first month, you should avoid scratching your head and irritating the healing tissues. However, after that initial period gentle massages may help the itching and stimulate healing. If the itching is not controlled, it is always a good idea to consult with your surgeon for a recheck All the best 

Itching in the recipient area can be treated with a topical cream such as bacitracin in very fine amounts applied to the recipient area