我头痛。可以给我几颗药吗？
I have a headache. May I have some medicine?

你们有什么感冒药吗？
Do you have any cold medicine?

我想吐。
I feel like throwing up.

他的耳朵在痛。该怎么办？
His ears are hurting. What should I do?

我呼吸有困难。
I’m having trouble breathing.

请给我一些晕机药好吗？
May I have some medicine for airsickness?

请给我一个呕吐袋好吗？
May I have an airsickness bag?