Also, there's evidence that the normal treatment for these clots, a blood thinner like heparin, may make it worse.

此外，有证据表明， 对这些凝块的常规治疗， 如肝素等血液稀释剂，可能会使情况变得更糟。

The word supplement means to add something additional - in addition to the normal or regular treatment that you may be receiving for your pain or your injury.

补充剂这个词的意思是添加一些额外的东西——除了你可能因疼痛或受伤而接受的正常或定期治疗之外。