治好 + 了 + Object
治好 (zhìhǎo) means "to cure" or "to heal successfully." It is a result complement construction combining 治 (to treat) with 好 (to become well), indicating that the treatment was successful. For example, 治好了病 means "cured the illness."
这种药把他的咳嗽治好了。
Zhè zhǒng yào bǎ tā de késou zhì hǎo le.
This medicine cured his cough.
医生说只要坚持吃药,这个病一定能治好。
Yīshēng shuō zhǐyào jiānchí chī yào, zhège bìng yídìng néng zhì hǎo.
The doctor said that as long as he keeps taking the medicine, this illness can definitely be cured.
他的胃病治好以后,胃口比以前好多了。
Tā de wèibìng zhì hǎo yǐhòu, wèikǒu bǐ yǐqián hǎo duō le.
After his stomach illness was cured, his appetite became much better than before.