Myself, I had great success with allergies by quitting all dairy and drinking green tea daily. I don't know so much about animal dander, I had a small allergy to that, but I hadn't been around it in about two years, so I couldn't notice a change. I was having a terrible problem with dust, though, and that stopped within a week. I went from taking Claritin (out of desperation) to no claritin and no sniffles/red eyes, etc. within a week, be it with some undue amounts of green tea at times. Green tea has been shown to have antihistamine properties.