Cold sore what do I do? WARNING PICTURES

Hi ladies so I recently got my first cold sore like 4 days ago. At first it felt like a tiny mosquito bite and thats what I thought it was. I didnt itch it, touch, or put any makeup on it. But it still hurt. 2 days later it got bigger and I thought what if its herpes or smth like that and I searched it up and its a cold sore and I really don't know where I got it from.

Here's a current picture of it. I havent touched, scratched, put creams or anything on it cuz I figure that will anger it and get bigger.

School starts next Tuesday and Im freaking worried about how its gonna look. So far to treat it Ive been putting cold ice packs on it for 1 day and it did make it less painful thank god.

Have any of you had this before and what should I do to speed up the process of it leaving? How soon did your guy's cold sores leave??? Please helpppp