You may want to be tested again for cat allergy - the newer tests may show a stronger reaction. You might ask on one of the allergy forums if others have been able to stop reacting to cats after self treatment. There are some eye drops which suppress the immune reaction - an allergist might help you live with your cats.
Hulda Clark wrote that if you have had a Toxoplasma then you will keep getting reinfected as long as you have cats and especially if you have an indoor cat box. Cats can be cleared of the parasite but as soon as the herbs are stopped they will be reinfected within a few days.