2. Tea Tree Oil

An option to treat keloid scars and help decrease their appearance is to apply tea tree oil to the scar. Some people prefer to use tea tree oil soap on the area twice a day. You can also buy tea tree oil and dilute it with water and apply it to the area. Tea tree oil is extremely potent, so mix one part tea tree oil to three parts water at the minimum. If you have sensitive skin you might want to mix the oil with aloe instead.