No one is perfectly symmetrical so it is not surprising that more of a filler is injected in one side compared with the other. also bruising and some swelling is not unusual after being injected but it should subside in less than the time frame you presented. The Restylane can be removed with injection of Vitrase and then you can see if you want to proceed with injection again. Be sure you see a board certified dermatologist or plastic surgeon for your treatments.
Asymmetry after filler injection
First it is important to understand that faces have natural asymmetry that is accentuated by our activity (even sleeping on one side can make that side flatter). So it is normal to use a different amount of filler on each side as the physician tries to create more symmetry. It is also normal to get more swelling or more bruising on one side versus the other just having to do with the location of vessels and chance. However, I would anticipate that by 4 weeks after injection, any bruising and swelling would have resolved and you should be able to see the results of the treatment. If you are still asymmetric, your physician can use hyaluronidase, the enzyme that dissolves hyaluronic acid gels like juvederm, to dissolve some of the filler on the asymmetric side to create more symmetry. Hyaluronidase will not damage your underlying skin quality. And a week later, if the side that was larger is now smaller, additional filler can be injected safely.I hope that answer is helpful. Best wishes!