How can I reduce the size of my butt after Brazilian Butt Lift?

 I will reserve judgment about a final volume until you're 3 months from your surgery. Compression now is not a control way to reduce the buttocks volume. You may lose some, none or all of the fat. After 3 months, liposuction can be performed judiciously to reduce the areas of fat that undesirable

Hello dear!!
Thanks for the question and provided information as well.
You are still early on the healing process, it can take up to six months to see your final results, so please be patient​. After a BBL, only about 70% of the transferred fat cells will survive, so you ca expect to see a minor reduction in your buttocks. If you have any concerns, I suggest you follow up close with your plastic surgeon.
Good luck :)

Patience is key. Address your concerns about size when you've fully healed around 3 months after surgery. Don't change your garments or deviate from what your surgeon has instructed you to do, what is best for your healing process is most important right now. Thank you for your ques

Before making any decisions, it is important to wait at least three months from the time of the surgery. By that time, the swelling should be fully dissipated and you can make a better decision about the results. 

If you just had the BBL a few days ago, I would wait at least 3 months before deciding that the buttocks are too large. After 3 months most of the swelling is down and you can better assess whether the buttocks are large. If that is the case, then liposuction can be done to reduce the size of the buttocks. Don't jump the gun!