I was told to use a straw to drink after my Juvederm lip filler. How long should I use a straw for?

Thanks for the question. 
I have never told any of my patients to use a straw after lip fillers and I cannot see the benefit of this. I would suggest getting in touch with your injector and asking them.
Good luck, I hope you are pleased with your results.
Dr. Chris Macdonald
CRM Aesthetics