If you’re allergic to wool, you should try this really easy and safe cure.  All you have to do is take a magnesium supplement.  Really.  That’s all there is to it.  I’ve used this technique for years and it never fails to work.  Every winter when I have to don a wool cap to stay warm, it will itch me just a bit (or maybe a lot).  So I go to the cabinet and get out the magnesium supplements and after one, maybe two capsules (taken once per day), I’m all better. No more itch.  :D  I just had to share this in case it will help anyone else out there . . . it’s so easy!  And wool is superior to anything else for keeping a body warm in the winter, so it’s very nice to be able to wear it comfortably.  Best wishes!