Jika ruam itu tidak hilang esok, saya akan pergi ke farmasi untuk bertanya.

Yes. Jika means if. It introduces a condition:

Jika ruam itu tidak hilang esok... = If the rash does not go away tomorrow...

In Malay, jika is slightly more formal than kalau. In everyday speech, many people would say kalau instead.

In Malay, itu often works like that or the, and it comes after the noun, not before it.

So:

• ruam = rash
• ruam itu = that rash / the rash

This word order is very normal in Malay. English says the rash, but Malay says rash that/the in structure.

Yes. Hilang literally means disappear, go away, or be gone. It is natural to use it for things like symptoms, pain, marks, or problems.

So ruam itu tidak hilang means:

• the rash does not go away
• the rash does not disappear

That sounds natural in Malay.

Malay uses tidak to negate verbs and adjectives, while bukan usually negates nouns or noun phrases.

Here, hilang is acting like a verb/state meaning go away / disappear, so tidak is correct:

• tidak hilang = does not go away

Using bukan here would be wrong.

Esok means tomorrow. In this sentence, English may translate it more naturally as by tomorrow, depending on context:

• literal: If the rash does not go away tomorrow...
• natural English meaning: If the rash has not gone away by tomorrow...

Malay often leaves this kind of timing slightly broader than English.

Yes. Akan is a common future marker, often meaning will.

So:

• saya akan pergi = I will go

Malay does not change the verb itself the way English sometimes does. The verb pergi stays the same, and akan shows future meaning.

Also, Malay often omits akan if the time is already clear from context. But including it makes the future meaning more explicit.

Ke means to when talking about movement toward a place.

So:

• pergi = go
• ke farmasi = to the pharmacy

Together:

• pergi ke farmasi = go to the pharmacy

This is a very common pattern in Malay:

• pergi ke sekolah = go to school
• pergi ke hospital = go to the hospital

Untuk means to / in order to, and bertanya means to ask.

So:

• untuk bertanya = to ask / in order to ask

In the full sentence, it shows purpose:

saya akan pergi ke farmasi untuk bertanya
= I will go to the pharmacy to ask

Malay often leaves out extra details that English might include, such as ask the pharmacist or ask about it, if those details are understood from context.

Good question. Bertanya means to ask, but Malay does not always state the person or topic if it is obvious.

If you want to be more specific, you could say:

• bertanya kepada ahli farmasi = ask the pharmacist
• bertanya tentang ruam itu = ask about the rash
• bertanya kepada ahli farmasi tentang ruam itu = ask the pharmacist about the rash

So the original sentence is natural, but slightly less specific.

Yes. Kalau is very common and more conversational.

So this would also be natural:

Kalau ruam itu tidak hilang esok, saya akan pergi ke farmasi untuk bertanya.

Difference in tone:

• jika = a bit more formal/written
• kalau = more everyday/spoken

The basic order is natural as written, but Malay does allow some flexibility.

Standard version:

Jika ruam itu tidak hilang esok, saya akan pergi ke farmasi untuk bertanya.

You could also move esok in some contexts, but the original sounds smooth and clear. Malay word order is often less rigid than English, but not every rearrangement sounds equally natural. For learners, the original structure is a good model:

Jika + condition, saya akan + action + purpose

It is a borrowed word, ultimately related to English pharmacy, but it is fully normal in modern Malay.

So:

• farmasi = pharmacy

You may also hear ahli farmasi for pharmacist.