Can the plan B pill cause lip filler to dissolve faster?

Vernayavera.  Birth control of any form has no affect on lip fillers. Fillers in the lip don’t last as long as in other places on the face because the lips are constantly moving and in general, usually dissolves faster. Another option would be fat transfer to the lips as studies indicate that as much as 50% of fat transferred to the lips remains permanently. Come see me or another board-certified plastic surgeon in the area to explore the best options for you. Good luck.

Hormones donot have any direct effects on fillers. Some hormones speed up body metabolism which could affect the rate of absorption of fillers???? Maybe????

Good question! No, hormones or plan B will not affect your lip filler. Lips are mobile and because of normal movement (eating, pursing your lips, kissing, whistling, drinking through a straw, etc. ) the filler tends to dissolve and absorb faster than in some other facial zones. Still I prefer to repeat treatment rather than have my patients look distorted or unnatural. You could certainly discuss this with your physician. 
For facial fillers, please have an in-person consultation with only a board-certified, fellowship trained MD with extensive facial plastic surgical experience. Avoid nurses, non-MDs, "deals" and "specials" and you should reduce the chance for any problems or complications. Good luck!
Damon B. Chandler, MD
Harvard-Penn Trained Oculofacial Plastic Surgeon