It is not uncommon to have some tenderness for a few days after Sculptra, especially if more than one vial is injected in a single session. It is important, nonetheless, to massage the treated areas for 5 minutes 5 times a day for 5 days. It helps to take tylenol to help with any discomfort -- just don't take more than the recommended daily dose. You might want to drink cold liquids, suck on ice cubes, or apply cold packs to your face to help with the soreness.
After you see how even and natural the effect is, you may feel this tenderness is worth it.