Might holding a warm tea bag on fever blisters/cold sores actually help to heal them?

Cold sores are Viral: I do not know of any value to doing this remedy. It is important to understand the nature of a cold sore or fever blister. These disorders are caused by the herpes virus. The virus can be very easily spread to other parts of your body or to other people through direct contact. I would recommend not putting a warm tea bad on the sore. The risk of spreading the virus is high. Talk to your dentist.