Hello, You had been taking lisinopril for one week. Presently you are having rash that is itchy and burning. You are also a little febrile. You are probably experiencing side effects of lisinopril. Lisinopril rashes should not be exposed to direct sunlight or UV rays. Wash the affected area with a mild soap. Do not touch or scratch. You can apply a layer of Hydrocortisone ointment on the affected area for relief. Oatmeal soap also relieves itching and inflammation. You can take acetaminophen, one stat to get rid of mild fever. If you observe symptoms like swelling of lips, face or throat, and trouble breathing, you should visit ER urgently. You need medical support and treatment. Sometimes it can be life-threatening and should be treated as a medical emergency. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician