How To Treat A Small Raised Bubble On Face?

I have a small raised bubble on my face I woke up with this morning. It is about 1 inch by 1/2 inch a little raised , no other remarkable things to say about it . Located on my upper cheek, adjacent to my nose, in the fleshy part of the upper cheek... Was going to use cucumber slice on it , or just observe and see if it goes away...