I am the allergy QUEEN and I also have TED–fun, isn’t it? I find that Zyrtec works well for me when my symptoms act up, and when my eyes are really itchy an eye drop (Optcon A) helps. I try to avoid things like sudafed that “dry me out”. Also, a saline rince for your eyes- or bathing your eyes in milk (I know it sounds weird but it feels great!) really makes a difference for sore itchy eyes. Also, make sure if you’re sleeping with windows open, or with a fan blowing your direction, you’re protecting your eyes from allergens with a sleep mask or tape !
Good luck !