Azért kapok érzéstelenítőt, hogy ne fájjon a kezelés.

This is a very common Hungarian pattern for expressing purpose.

• azért = for that / for that reason
• hogy = that / so that

Together, azért ... hogy ... often means so that ... or in order to ...

So here the structure is:

• Azért kapok érzéstelenítőt, hogy...
• I get an anesthetic so that...

It is not just random azért plus random hogy. They work together as a pair.

Yes, often you can.

You could also say:

• Érzéstelenítőt kapok, hogy ne fájjon a kezelés.

That still means essentially the same thing: I get an anesthetic so that the treatment won’t hurt.

Adding azért makes the purpose relationship a bit more explicit. It can sound slightly more like:

• That’s why I get an anesthetic: so that the treatment won’t hurt.

So:

• with azért = purpose is more clearly highlighted
• without azért = still natural, just a little simpler

Hungarian usually does not need to say the subject pronoun if the verb ending already shows it.

Here, kapok means I get / I am getting.

The ending -ok shows:

• 1st person singular
• so the subject is I

That is why there is no separate én.

You could say:

• Én azért kapok érzéstelenítőt, hogy ne fájjon a kezelés.

But én would usually add emphasis, something like I am the one who gets... or as for me...

In normal neutral speech, Hungarian prefers to leave it out.

This is about the Hungarian indefinite vs. definite conjugation.

Hungarian verbs often have two sets of endings:

• indefinite conjugation
• definite conjugation

Here the object is érzéstelenítőt, without a definite article. That makes it indefinite in this sentence, so the verb is:

• kapok = I get

If the object were definite, you would use the definite form:

• Kapom az érzéstelenítőt.
• I am getting the anesthetic.

So in your sentence:

• kapok érzéstelenítőt = I get an anesthetic / I receive anesthetic

not

• kapom érzéstelenítőt ❌

because that mixes a definite verb form with an indefinite object.

The -t marks the accusative case, which is usually the direct object.

Here, the thing being received is the direct object:

• kapok mit?
• érzéstelenítőt

So:

• érzéstelenítő = anesthetic
• érzéstelenítőt = anesthetic, as a direct object

This -t is extremely common in Hungarian. You will see it on many direct objects.

Because after hogy in a purpose clause, Hungarian often uses the subjunctive / imperative-type form of the verb.

Compare:

• fáj = it hurts
• fájjon = may it hurt / let it hurt / for it to hurt

In this sentence, the idea is not a plain statement of fact. It is a desired result:

• I get an anesthetic so that the treatment will not hurt

That is why Hungarian uses:

• hogy ne fájjon...

This is one of the most common places where learners meet this form.

A useful pattern to remember is:

• azért ... hogy + subjunctive
• so that ...

Because ne is the normal negative word used with:

• imperative forms
• subjunctive-type forms
• commands, wishes, intended results

Since fájjon is this kind of form, its negative is:

• ne fájjon = so that it won’t hurt / so that it should not hurt

By contrast, nem is used with ordinary indicative forms:

• nem fáj = it does not hurt

So the contrast is:

• nem fáj = it doesn’t hurt
• ne fájjon = so that it won’t hurt / may it not hurt

That is why nem fájjon is not correct here.

This is a very important Hungarian pattern.

With fáj, Hungarian usually treats the painful thing as the subject:

• Fáj a fogam. = My tooth hurts.
• literally: Hurts my tooth

So here:

• a kezelés = the treatment
• fájjon a kezelés = the treatment hurt

In more natural English, we may say:

• so that the treatment won’t hurt
• or so that the treatment won’t be painful

If you want to add the person affected, Hungarian can include that too:

• hogy ne fájjon nekem a kezelés
• so that the treatment won’t hurt me

But even without nekem, the meaning is clear.

Because it refers to a specific treatment that both speaker and listener can identify from the situation.

• a kezelés = the treatment

This is very natural in Hungarian when the situation makes the referent clear.

The sentence is not talking about treatment in general, but about the particular treatment being done.

That is why the definite article a is used.

Yes, Hungarian word order is flexible, but different orders change emphasis and information structure.

Your sentence is natural:

• Azért kapok érzéstelenítőt, hogy ne fájjon a kezelés.

This presents the purpose fairly clearly and smoothly.

You could also hear:

• Érzéstelenítőt kapok, hogy ne fájjon a kezelés.
• Azért kapok érzéstelenítőt, hogy a kezelés ne fájjon.

These are all understandable, but the emphasis shifts slightly.

A useful idea for learners is:

• Hungarian word order is not random
• it often reflects what is being highlighted

So rather than looking for one fixed English-style order, try to notice what part is being emphasized.

It is a good example of how Hungarian forms longer words from smaller parts.

Very roughly:

• érzés = feeling, sensation
• telen = without
• -ít = make something become
• -ő = a thing/person that does the action
• -t = accusative ending

So érzéstelenítő is something like:

• something that removes sensation
• in normal English: anesthetic

And in the sentence:

• érzéstelenítőt = anesthetic, as the object

You do not need to memorize every internal piece right away, but it can help you see that long Hungarian words are often quite systematic.

It is definitely the second one:

• I get an anesthetic so that the treatment won’t hurt.

The sentence expresses purpose, not just cause.

That is exactly what the azért ... hogy ... structure is doing here.

If Hungarian only wanted to say a simple reason such as because of the treatment, it would usually use a different structure. Here the point is the intended result:

• getting the anesthetic
• in order to avoid pain during the treatment