painkiller|painkillers

对许多人来说，音乐是心碎时最好的止痛药。

For many people, music serves as the best ___painkiller when their hearts are broken.

如果你头痛，可以吃些止痛药缓解。

You can take some ___painkillers if you have a headache.

购物成了她的止痛药，每当心情低落时就去买点东西。

Shopping became her ___painkiller whenever she felt down.