Should a compression belt hurt when using it after breast augmentation?

Thank you for your question.  I would defer to your surgeon whether this can stopped or whether it should be encouraged.  There may be a specific reason why they are using this in your case.  In general, they are used to help guide the implant into its final position.

If you mean the elastic strap putting pressure on the upper pole of your breasts then it often causes discomfort as you swell. I tell my patients to loosen that strap if it is causing discomfort. It also causes skin irritation for some patients. In that case I recommend putting the strap over a soft tee shirt. I have my patients wear that strap for 1-2 weeks but many patients find it difficult to tolerate for more than a week. 

A compression belt (or breast strap) after breast augmentation is usually used to help the implants settle into a better position.The belt can cause pressure, which may be uncomfortable. However, the discomfort should lessen over time.Sometimes the belt can be rough and irritating to the skin. Wearing a soft shirt under the belt can help.The belt should be firm but not so tight as to cause real pain. Generally the belt should be worn as much as possible.If you experience pain, not discomfort, with belt use, you should consult your surgeon.Good luck!