Extremely itchy donor area after FUE transplant, what can help ease the itching?

I have since about the 2nd day after my FUE transplant (2900 grafts) extremely itchy donor area. I'm now on day 7 and I'm going crazy. It's especially itchy during the evening (starting at 8 pm till/before sleeping. What I do: I wash my hair 2 times a day very gently like my doctor told me to with a special shampoo they gave me. I took some Ibuprofen and I think it helps a bit I do also have very little "fever" feeling in the evening. My doctor told me to apply "cold packs" but it doesn't help.