Something that may break the cycle is changing up your usual schedule/daily routine in some way. For example, a couple of weeks ago, Cliff and I took off for a couple of hours and just drove out and around Lake Lotawana. On a hot, itchy day, but with the windows up and the air conditioner, we gave our eyes something new to look at, and we were both in a better humor.
There are lots of itches right now – dry skin included. So instead of scratching the itch, do something soothing for yourself.