Sounds like peripheral neuropathy
Usually you would get symptoms like itching, burning and or tingling symptoms occuring around your lips.
Sorry hun but cold sores are caused by the oral herpes virus. You can't cold sores with out getting oral herpes. It's nothing to be ashamed of (you can get them on the mouth with out ever having any thing to do with sex), it's very common to have and it's not the end of the world people can still accept you even if you have a cold sore.
Trygeminal neuralgia
May cause nausea, vomiting, diarrhea, weakness, itching, cold skin, thirst, tingling sensations, and severe muscle cramps; also may cause severe rebound headaches.
The symptoms of Peripheral Vascular Disease are the hardening of the arteries. Sufferers get pain, burning or tingling of the feet and cold feelings in the legs.
After my head injury I have cold sensations internally
There really isn't a difference, sunblisters are just a prettier name for cold sores. If the blisters come with symptoms like itching, burning and or tingling symptoms then they could be cold sores or fever blisters. Cold sores can be triggered to break out when you're out in the sun for long periods of time.
COLD
The best way to treat poison oak is to use a cold compress on the areas that are developing a rash or itch. You can also use calamine lotion or a hydrocortisone cream to relieve the itching and burning sensations.
Most people experience burning, itching and or tingling symptoms around the lips; this can be minor to uncomfortable even pain full to the person with cold sores. Some people get a pimple that breaks into a cold sore, some people get an open paper cut like sore on their mouths.
The major symptom of cold sores is feeling some unusual sensations around the lips.
Measuring the temperature with adequate instruments.