Old Meds in the liver?

I am planning on doing a Hulda Clark Liver Flushin 2 weeks to see if it helps with a persistent skin problem I have. I have been on a the colonix Colon Cleanse for the last 4 weeks in preperation and I also plan on doing a full colonic the day after the liver flush.
This skin problem all began aabout 4 years ago after I came of the Acne medication Accutane. Immediatly after I came off the medication (6 months total) I began to experience itchy breakouts and hive like blemishes all over my body but mostly on my face. I also had horrendously dry, flaky skin (I looked like a corpse)
This persisted for approximatly 13 months and finally subsided after some dietery changes and homeopathic remedies. But Last October it started up again and from the research I've been doing on this forum it seems to me like the liver might have been the culprit all along. I have never done a Liver Flush and I know that Accutane and other prescrip. meds can wreak havoc on the liver.
Could the toxins in the Accutane have caused a build-up of gallstones/ liver stones which are somehow affecting my skin?
Also I did some electro-dermal testing with a naturopath which showed a long list of food allergies that had not existed before the Accutane....the plot thickens.
Your thoughts and comments would be much appreciated.