One of the many properties of aspirin?

I will never understand Korean medicine and its theories (superstitions?). Example conversation:

Student: Are you cold?

(I was wearing a sweater)

Me: Yeah. I'm cold.

Student: Did you catch a cold?

(this has happened many times before. Apparently, for some people, the two colds are synonymous with one another. Granted, this could be a linguistic confusion, since English uses the same word for different things)

Me: No.

Student: (confused) Oh, really?

Me: You can be cold and not catch a cold. I'm still healthy.

Student: Oh. You should take a pill.

Me: A pill?

Student: Yes. Like aspirin.

Me: Will aspirin make me warm?

Student: Yes.

..... okay.....