What can I do about painful lumps appearing 5 months after Juvederm?

Hello Scatterd.  Although rare, there are side effects that are consistent with what you describe.  Hard (not always painful) lumps that develop post dermal filler injections could be granulomas.  This type of hard cyst is the body's immune reaction walling off the product and surrounding with dense tissue.  These nodules can be addressed typically with steroid injections, but you should check in with your injector to have them evaluated.  Best of luck.

I recommend following up with your injector. If necessary, you can have it reversed with hyaluronidase and try a different technique next time. See an expert. Best, Dr. Emer

I encourage you to visit with your injector as your symptoms are not typical.  The product can be dissolved with hyaluronidase.  You may need medication to treat the swelling or potential infection.

Thank you for sharing your excellent question.  In most cases the Juvederm can be easily dissolved with a product termed hyaluronidase.  I would see your injector, or an ASPS board certified plastic surgeon in consultation to discuss. 

If you have painful lumps you need to get them dissolved with hyaluronidase.  You will most likely also need to be on antibiotics or anti-inflammatory medicines.  See the doctor who injected you for these treatments.