The context of the following conversation is Jesse had some medicine left over from when they were sick. Taylor gave Jesse's medicine to them.:
Jesse says Taylor was sick.  I gave him my leftover medicine from when I was sick..
The friend responds Why is he sick?.
Jesse responds He said he went for a midnight swim in the ocean.   The water was cold as ice.  He thinks he got sick from that..
The friend responds Hope your medicine helps him..
Jesse responds I took that when I had a cold so they should provide him with some relief..
The friend responds He doesn't usually get sick.  Taylor is a strong guy..