Kama kikohozi kitaongezeka, tutarudi famasi kununua plasta na dawa nyingine.

Here kama means if and introduces the condition:

• Kama kikohozi kitaongezeka = If the cough gets worse / increases

Be careful, because kama can also mean like/as in other sentences. In this sentence, the meaning is clearly conditional: if.

This is because of noun class agreement.

• kikohozi = cough
• It belongs to the ki-/vi- noun class
• Verbs must agree with the noun class of their subject

So in kitaongezeka:

• ki- = subject marker for the noun class of kikohozi
• -ta- = future tense
• ongezeka = increase / become greater

So kitaongezeka literally means it will increase, where it refers to kikohozi.

It breaks down like this:

• ki- = it for the ki-/vi- noun class
• -ta- = will
• ongezeka = increase, become more, get worse

So:

• kitaongezeka = it will increase
• In natural English here: it will get worse

This is a good example of how Swahili packs subject + tense + verb into one word.

Literally, ongezeka means increase or become more.

But with something like kikohozi (a cough), English usually says:

• the cough gets worse
• the cough worsens

So even though the literal sense is increase, the natural meaning here is get worse.

tutarudi means we will return or we will go back.

It breaks down as:

• tu- = we
• -ta- = future tense
• rudi = return / go back

So:

• tutarudi famasi = we will return to the pharmacy / we will go back to the pharmacy

After verbs of motion, Swahili can sometimes name the destination directly, especially in everyday speech.

So:

• tutarudi famasi = we will go back to the pharmacy

You could also hear or say:

• tutarudi kwenye famasi
• tutarudi kwa famasi in some contexts, though kwenye famasi is more clearly locational

Using just famasi after rudi is natural and concise.

Also, famasi is a borrowed word meaning pharmacy. Some speakers may also say duka la dawa.

kununua is the infinitive to buy.

Here it shows purpose:

• tutarudi famasi kununua plasta na dawa nyingine
• we will go back to the pharmacy to buy plasters and other medicine

Swahili often uses this simple structure after a motion verb:

• go/come/return somewhere + infinitive

So kununua means to buy, not a separate new action with its own subject marker.

plasta is a loanword. In medical everyday use, it often means:

• plaster
• bandage
• especially an adhesive bandage / Band-Aid

The exact English word depends on context, but in a sentence like this, plasta usually refers to something used for minor wounds.

dawa nyingine means other medicine or other medicines.

A few useful points:

• dawa is a noun that often stays the same in singular and plural
• -ingine means other / another
• With dawa, the agreeing form is nyingine

So:

• dawa nyingine = other medicine / other medicines

This is very normal everyday Swahili.
A longer or more formal form like nyinginezo exists in some styles, but nyingine is the standard everyday choice here.

It is just the normal future tense used in a conditional sentence.

Structure:

• Kama + future clause
• future clause

So:

• Kama kikohozi kitaongezeka, tutarudi famasi...
• If the cough gets worse, we will go back to the pharmacy...

In Swahili, this is a common and natural way to express a real future condition. There is no special English-style will/would contrast here.

The sentence follows a very common pattern:

• Condition
  • main clause
    • purpose infinitive

So:

1. Kama kikohozi kitaongezeka = If the cough gets worse
2. tutarudi famasi = we will go back to the pharmacy
3. kununua plasta na dawa nyingine = to buy plasters and other medicine

This makes the full structure easy to understand:

• If X happens, we will do Y in order to do Z.