How to Avoid Sculptra Bumps?

Sculptra is not something that I typically use close to the eyes. I will use it to volumize the cheeks or temple areas primarily, or any other area with significant volume deficiency.
Product mixing and injection techniques have changed over the past few years in order to reduce the incidence of nodule and granuloma formation.
Also, post-injection, patients are advised to massage the affected areas several times per day for several days post-treatment. If nodules develop, it may simply take time to for them to resolve, while some may require steroid injections or even surgical excision. Nodule formation is quite rare, and is not something I have even seen in my practice. Always see an expert physician injector.
All the best,

To reduce the risk of Sculptra nodules, your provider should pre-mix the solution and allow it to sit for 48 hours in order to maximize it becoming dissolved.   Sculptra is a hydrophobic substance which means it doen't like to dissolve in water, and so this time for dissolution is ideal in order for it to not be "clumpy."  The areas  around the lips and the eyes are not to be injected due to the way the circular muscles around these areas has a very high risk of nodules.  It is thought that their contraction, which is similar to the motion of a camera lens, results in concentration of Sulptra in a few areas and therefore causes nodules because there is too much collagen being created in one area.  Following these steps properly is essential for the best outcome.   Also, the plane of injection is NOT in the dermis, but rather where the skin of the dermis meets the fat, known as the "subdermal plane".  Finally, after the treatment, massaging the injected areas for 5 minutes, 5 times a day for 5 days will help to ensure even dispersion.  
Hope you found this answer helpful.  All the best!

Sculptra is not typically thought of as an appropriate product to be placed under the eyes due to the increased risk of visible and/or palpable granuloma and nodule formation. That being said, once placed, the only thing that can be done to attempt to decrease the chance of nodule formation is regular massage (usually massage for 5 minutes 5 times per day for 5 days, the so-called “5-5-5 rule”) but even this is not a guarantee.