Bump from lip biting

I have a clear bump on my lower lip from constant biting habit, had it for two weeks and went to the doctors. My doctor told me she can’t give me anything because it’s not infected that it should go away in it’s on. Here I am two weeks later and it doesn’t go away at all,

Anyone know how I can try to self treat it???

Pls & thank you so much

It’s a Mucous cysts