To control an itch, sometimes a bit of self-positive reinforcement in knowing that the more you scratch the worse it becomes is helpful. I always advise not to start scratching because once you start scratching it becomes itchier and the whole itch-scratch cycle beings, so try not to initiate it.
I do recommend a method called cold compress to the area, or alternatively, those cooling moisturizers with that menthol feel may also help to relieve the itch, so these are some of the measures you can do. Of course, you can take antihistamines and apply some topical inflammatory medications to help.
