Can I take nitrofurantoin 50mg after having lip filler and Botox 3 days ago?

Hello!
There should be no interaction between the filler and the antibiotic. I would wait until you have completely finished your medication and the infection is cleared before having any other treatments. 
Best of Luck!
Glow Med Spa Encino

Thank you for your question. Your Botox treatment should not interfere with your anabiotic's or vice a versa. If you are having an active infection, however, it may be wise to wait until it fully clears before doing any additional procedure that penetrates the skin, especially if you're having symptoms such as fevers or chills. Please consult your own doctor first prior to proceeding with your next treatment. Best of luck!