在英语中，"治牙疼"可以用 "treat a toothache" 来表示。
"Treat" 是一个动词，意思是 "处理，治疗"。
"Toothache" 是一个名词，意思是 "牙痛"。
下面是一些例句：
I have a terrible toothache. I need to go to the dentist to treat it. (我牙痛得厉害。我需要去看牙医治疗。)
The dentist gave me some medication to treat my toothache. (牙医给了我一些药物来治疗我的牙痛。)
I tried using an over-the-counter painkiller to treat my toothache, but it didn't work. (我试着用非处方止痛药来治疗我的牙痛，但没有用。)