What's wrong with you?

你怎么了？

I'm not feeling well.

我感觉不舒服。

Open your mouth and say "Ah".

张开嘴说“啊”。

Ah.

啊。

Emm...you are just having a sore throat which leads to a bad cold.

嗯……你只是喉咙痛导致了重感冒。

Will it go away by itself?

它会自己好吗？

I advise you to have some medicine that actually has little side effects.

我建议你吃一些没有什么副作用的药。

Fine，although I hate medicine.

好吧，虽然我讨厌吃药。