Hi I can understand your concern.... See your rashes in hepatitis C can be from following causes......... 1.allergic rashes 2.hepatitis c chronic illness induce rash 3.As a result of side effect from HCV treatment etc.... You can take antihistaminic drug for it .... If severe rashes topical steroid application might be useful.... Avoid sun exposure .... Use moisturising soap .... Loose cloths.... Meanwhile if rashes related to drugs used in your treatment you can switch over to other drugs.... If rashes itchy and widespread it could be urticaria case .... Ultimate treatment for deteriorating liver is transplantation..... If needed for rashes you can consult dermatologist for examination.... Take care. .. Hope your concern solved.