Could be a few things
Have you been bowel cleansing and making a change in your diet until all the tissues in your body have become purified? If you didn't do a
colonic or enema after your flush, then the toxins can become trapped in your bowel, causing more stress on your liver and an eventual worsening of symtpoms.
What may be happening with the herbs you are taking is they may contain allergens that are worsening your condition. In other words, you may be allergic to (one or all of) these herbs; after all, excema is more or less a condition of inflammation and allergies, though it manifests as a "skin" condition. Excema is ALWAYS a sign of an overburdened liver. ALWAYS.
What I would do if I were you is this:
1. Immediately do a bowel cleanse/enema program (see
Bowel Cleanse Forum s here for more details)
2. Stop the milk thistle and perhaps get some liver enhancing products from www.sensiblehealth.com (Chinese Bitters and Coptis may be very helpful)
3. Make sure you juice and have tons of alkaline producing foods in your diet.
4. Consider taking Evening Primrose Oil, which is very good for excema.
I believe that there is a spray called "skin zinc" or something like that that is supposed to be very helpful as well, though I havn't used it personally.
I found for me that bowel cleansing coupled with
Liver Flushing produced the best results. Also, doing a thorough detox of the whole body (including heavy metal detoxing....see Dr. Vinograd's forum for information on the BodyPure pads, link on the top of his page) is very helpful.
I have come to believe that cleansing the liver, bowel, and decontaminating oneself from all heavy metals is the way to go; leaving out just one of those areas tends to not give good or lasting results. Including plenty of raw, organic foods is always helpful as well.