Can I stop sculptra and not do second treatment and will one treatment do much?

You can definitely stop Sculptra after one treatment. However you will not obtain optimal results. If you felt like you were overfilled during the treatment, then you may consider doing one vial at a time if you decide on doing a second or third treatment.  Make sure that you feel comfortable with your Sculptra  injector and that he or she is experienced with the product as it requires a much higher learning curve.

There is no way for us to answer this.  Wed have to see pictures and evaluate you in person to determine what your goals are.  2 Vials may give you a result but it all depends on your initial situation.  I often combine sculptra with other fillers to get both short and long term results.  Best, Dr. Emer.

It is impossible to judge the true results of your Sculptra treatment two days after the procedure.  There normally is some fullness due to the fluid injected during the treatment and this takes several days to a few weeks to go down.  After this initial fullness goes away, there is some stimulation of your tissue that will lead to some volume replacement.  It will take 1-2 months to see the result of the treatment that you had.  It is possible to stop after just one treatment if you are satisfied with the results after 1-2 months.   

This injectable filler has significantly more volume than others and therefore the immediate look may not represent the final look at 1 month. Once the water is resorbed, the Sculptra will start stimulating collagen production. 

The fullness you are experiencing is due to the volume of water that was injected with the Sculptra and will go away within a few days.  The Sculptra particles will then go to work to provide a subtle, gradual increase in fullness.  One treatment will provide some volume but most likely not optimal correction - but this depends greatly on your age, the quality of your skin, activity level, and volume deficit.  I think that the most important thing to review with your physician is your primary concern.  Perhaps the wrinkles you describe would be best addressed with a laser resurfacing treatment as opposed to Sculptra.  We have so many tools these days for specific skin changes, and these need to be chosen to meet your unique needs.