I’ve found a lump above my lip after filler dissolving - is this a side effect or should I be concerned?

I don't know why you had 500u of hyaluronidase injected unless you had a vascular compromise. Swelling is not uncommon because there is some volume associated with this amount of enzyme. I would give it another day or 2. It is also possible that it is a bruise or whatever the underlying problem...

Filler complications are common and can cause emotional distress and in some cases, physical deformity. Swelling, lumpiness, and uneven facial volume are just a few of the complications associated with hyaluronic acid fillers. Our office is a global center of excellence for the management of...

If you have filler in your nose, hylauronidase would certainly help. I would not recommend injecting it otherwise. If you are unhappy with the size of your nose, pursue plastic surgery for a rhinoplasty. Good luck. 

Hyaluronidase most certainly will not cause nerve damage. Now it is possible that the needle used to inject the hyaluronidase can hit or pierce a nerve which can cause a bruised nerve and temporary problems.

Hi. Thank you for your question. There appears to be swelling in your photos, and it can take a few days to settle. Also, several sessions are needed to fully dissolve the residual filler. 

There is no danger with using expired hyaluronidase. If there is any untoward effect, it will be slightly less effective. Given it was only 2 months expired, it will probably be just as effective though. I'm not recommending using any expired medications but just want to sooth your anxiety.