has some cardiovuscular side effect in high doses but it does not causes rash
, so you should consult your treating physician with this complain because you need to be investigated for its cause properly and if required then consult a dermatologist
with full history of your problem.
as far as your thyroid
profile is concerned you should try to keep its level in normal limit by regular follw up and if required then take it externally because decreased thyroid hormone may lead to sevaral problem in the body including psychiaric problem.
thanks for consulting HCM.