Itchy Scalp. Itchy Eyes And When I Scratch It Itches

Itchy scalp. Itchy eyes and when I scratch it itches more. Sometimes inside of nostrils itch; only relief I get is squeezing wet paper towel inside nostril. Recently, had swabs of iodine given for both nostrils before surgery and problem was much improved for some time afterwards. Excessive sneezing, sometimes have to blow nose all morning.