a skin rash? well i went on thyrolean, active ingredient guggulsterones, and this morning two days after starting i got a rash on my stomach. i plan to keep using it though, just lower the dosage, maybe it'll go away. i have high cholesterol and should be taking something for it. plus i can't do ECA because of heart palpitations. one way or another i will have a ripped body for summer. one way or another.