ganhosaga sangcheoreul sodokhan da-eume bungdaereul gama jwosseoyo.

-한 다음에 means after doing... or once ... is done.

Here, 소독한 다음에 = after disinfecting.

How it is built:

• 소독하다 = to disinfect
• 소독한 = disinfected / having disinfected
• 다음에 = after, next

So literally, it is something like after the disinfecting was done.

This pattern is very common for showing sequence:

• 밥을 먹은 다음에 공부해요. = After eating, I study.
• 손을 씻은 다음에 요리하세요. = Wash your hands before/then cook.

Because 다음에 needs a clause that modifies it, and Korean does that with a verb changed into an attributive form.

For a past/completed action with 하다 verbs:

• 하다 → 한

So:

• 소독하다 → 소독한
• 청소하다 → 청소한
• 공부하다 → 공부한

That is why you get:

• 소독한 다음에 = after disinfecting

You cannot normally say 소독하다 다음에 in standard grammar.

Yes, it could.

For example:

• 간호사가 상처를 소독하고 붕대를 감아 줬어요.

This also means the nurse disinfected the wound and then wrapped a bandage.

The difference is nuance:

• -고 simply links actions: and / then
• -한 다음에 emphasizes after that action is completed

So 소독한 다음에 sounds a bit more clearly sequential: first disinfect, then bandage.

-가 is the subject marker.

• 간호사 = nurse
• 간호사가 = the nurse (as the subject)

The nurse is the one performing the actions:

• disinfecting
• wrapping the bandage

So 간호사가 marks who did it.

A learner may also wonder whether 간호사는 is possible. It is, but it would change the nuance:

• 간호사가 focuses on the subject itself: the nurse did it
• 간호사는 would sound more like as for the nurse...

Because both are direct objects of different verbs.

• 상처를 소독하다 = disinfect the wound
• 붕대를 감다 = wrap the bandage

So in the sentence:

• 상처를 belongs with 소독한
• 붕대를 belongs with 감아 줬어요

This is very normal in Korean when one sentence contains two actions.

감다 literally means to wind, to wrap, or to coil around something.

So 붕대를 감다 means:

• to wrap a bandage
• to bandage

In natural English, we often say:

• wrap a bandage around the wound
• bandage the wound

Korean focuses on the object 붕대 (bandage), so the expression is literally wrap the bandage.

주다 after another verb often adds the meaning of doing something for someone.

So:

• 감았어요 = wrapped it
• 감아 줬어요 = wrapped it for someone

In this sentence, 감아 줬어요 suggests the nurse did the action as a helpful service or benefit to the patient.

This grammar is very common:

• 문을 열어 줬어요. = (Someone) opened the door for me/him/her.
• 가르쳐 줬어요. = taught (someone) / explained it for someone

Often the person receiving the help is omitted if it is obvious from context.

Yes, learners often notice this.

Standard spacing usually writes the auxiliary separately:

• 감아 줬어요

But in everyday writing, many people also write it 붙여서:

• 감아줬어요

The same thing happens with other verb + 주다 combinations:

• 도와 줬어요 / 도와줬어요
• 알려 줬어요 / 알려줬어요

If you want to be safest for textbook-style writing, use the separated form:

• 감아 줬어요

줬어요 is:

• past tense
• polite informal style (the -어요 style)

It comes from:

• 주다 = to give
• 주었어요 = gave
• 줬어요 = contracted form of 주었어요

So the whole sentence is in polite past tense:

• the nurse disinfected the wound and then wrapped a bandage

In Korean, tense is often shown where it is needed in each clause, but the sentence naturally ends with the final finite verb, and that final verb strongly anchors the whole sentence.

Here:

• 소독한 다음에 already implies the first action is completed
• 감아 줬어요 finishes the sentence in past polite form

So the timeline is clear:

1. the wound was disinfected
2. then the bandage was wrapped

Korean does not need to repeat a full past ending on every part the way English sometimes seems to.

Because Korean often leaves out information that is clear from context.

In a medical context, if a nurse disinfects a wound and then wraps a bandage, Korean does not need to spell out every relationship.

So:

• 상처를 already tells you there is a wound
• 붕대를 감아 줬어요 naturally implies the bandage was wrapped on that wound / on the injured area

Likewise, the beneficiary of 줘요 can be omitted if obvious.

This omission is extremely common in Korean and can sound more natural than over-specifying everything.

Yes, 다음에 can mean next time in other contexts.

For example:

• 다음에 만나요. = See you next time.

But in 소독한 다음에, it follows a verb-modifying form, so it means after doing that.

Compare:

• 다음에 봐요. = See you next time.
• 숙제를 한 다음에 자요. = I sleep after doing my homework.

So the grammar before 다음에 tells you which meaning it has.

Korean word order is somewhat flexible, but the default order here is very natural:

• 간호사가 = subject
• 상처를 소독한 다음에 = after disinfecting the wound
• 붕대를 감아 줬어요 = wrapped the bandage for the patient

Because Korean uses particles like -가 and -를, the roles of words stay clear even if you move some parts around.

For example, you could also say:

• 상처를 소독한 다음에 간호사가 붕대를 감아 줬어요.

This is still grammatical, though the original version is probably the most neutral and natural in many contexts.

Yes. 상처를 소독하다 is a normal Korean expression meaning to disinfect the wound.

Korean often says exactly what is being treated:

• 상처를 소독하다 = disinfect the wound
• 이를 닦다 = brush the teeth
• 손을 씻다 = wash the hands

So even if English sometimes phrases it a little differently, the Korean wording is perfectly standard.