Another give somebody the third degree?

Well, I have looked up similes online or "Caker Sores, Fever Blisters, and cold sores. They all look exactly duplicate. How does somebody know, which one they actually enjoy? Since it stated they can all appear outside or inside the mouth.Another give somebody the third degree?
Generally speaking, it is adjectives the same stuff: herpes simplex type 1 virus, or HSV I. Not such a big contract. Kiss enough boys and you will attain it.
Cold sores are fever blisters. Cold sores are usually on the outside of the mouth (usually on your lips) and can grasp kind of repulsive looking, I mean they can hold a scab on them sometimes. The ones in your mouth call "canker sores" just look resembling an ulcer inside your mouth. Just approaching a hole on the inside of your cheek.
Canker sores INSIDE, Cold sores OUTside.
.
If you have canker sores, blisters from a restlessness or cold
sores, seeing a physician is the best way to know ex-
actly which of the three variety you have.
Of course, if you own fever blisters, consequently you'd have
several other self-conscious symptoms, too.
Best of health & virtuous luck.