Why is filler coming out of this spot on my lip? (Photos)

Thank you for your pictures and question.  Please do return to your injector.  You may have or be developing an infection, they may want to put your on a course of antibiotics as a precaution.  All The Best

Hello, this does not look like an infection. You should go back to the one that provided you this material.
Dr K

Hello Emb, 
I would book in to be reviewed in person by your injector, they should be able to manage this for you. My concern is that the area is quite red and your lips do look swollen in this photo. Try not to touch the area as it may lead to an infection. 
Wishing you all the best