yageul meokgo naseo gamgiga naagago isseoyo.

After taking medicine, my cold is getting better.

Breakdown of yageul meokgo naseo gamgiga naagago isseoyo.

• ~을: object particle
• 먹다: to eat
• ~가: subject particle
• 있다: to be

Questions & Answers about yageul meokgo naseo gamgiga naagago isseoyo.

What does -고 나서 mean in 먹고 나서?

-고 나서 means after doing X, then Y happens.

So 약을 먹고 나서 means after taking medicine.

It usually emphasizes:

• the first action happens first
• that action is completed
• then the next situation happens

So the sentence is showing a sequence:

1. 약을 먹다 — take medicine
2. 감기가 나아가고 있어요 — the cold is getting better

Why is it 약을 and not 약이?

Because 약 is the direct object of 먹다.

• 약 = medicine
• 먹다 = to eat / take
• 을/를 = object marker

So 약을 먹다 means to take medicine.

If the noun ends in a consonant, Korean uses -을. If it ends in a vowel, Korean uses -를.

Since 약 ends in a consonant, it becomes 약을.

Why is it 감기가 and not 감기를?