>> what's your best advice to avoid these kinds of allergies? >> if you talk to a lot of allergy doctors they say find out exactly what the trigger is. besides smoking it could be air pollution, hayfever, ragweed, pollens. once you know what the trigger is, stay away from it. that's simple. that's the first thing. i think a lot of wonderful treatments are coming and merk came up with this medication called danex which is an anti-inflammatory that is effective and more exciting is if the pollens are triggers causing your immune system to make the antibodies and his staw mean and a lot of times we take antihistamines and now they are going after the immune system. they come up with a medication you put under your tongue for about a year and gradually the the -- it desensitizes your immune system so it won't react and over time gradually you will be perfect. very exciting. >> that's something i would