Learn Farsi: درمان کردنش را چطور به مادر مضطرب توضیح می‌دهید؟ - How do you explain treating him to the anxious mother?

This highlights the focus of our current lesson! The verb is a compound: درمان کردن (to treat). To express "treating him" as a noun phrase, the enclitic ـَش (-ash, meaning him) attaches directly to the infinitive part, کردن (kardan), not to the noun درمان. So, درمان کردنش literally acts as "the treating of him".

Why is را (rā) used right after درمان کردنش?

The word را marks the definite direct object of the main verb, توضیح می‌دهید (you explain). What are you explaining? You are explaining "treating him" (درمان کردنش). Because the enclitic ـَش points to a specific person, the entire infinitive phrase is definite, requiring را.

Could I say درمان کردن او instead of درمان کردنش?

Yes, درمان کردن او (darmān kardan-e u) is grammatically correct and means the exact same thing. However, using the attached enclitic ـَش is often much more natural and seamless in fluent Persian, which is why this structure is preferred here.

How do we pronounce the phrase for "the anxious mother" here?

It is pronounced mādar-e moztareb. The word مضطرب (moztareb) is an excellent B2-level adjective meaning "anxious" or "distressed". As always, it connects to the noun it describes, مادر (mother), with an invisible vowel (-e).