When we ran out of that , he went on a hunger strike but finally gave in and started eating again . Rusty got so much better in just a couple days , but then when the meds ran out , he seemed to have a relapse . I panicked and called Dr. Jones ( this was Thursday May 29 in the evening ) because Rusty was kind of pukey again . Dr. Jones told me to give Rusty a Pepto tablet , so I ran out and bought some , and it seemed to work .

Generate a question about the above context.
What caused Rusty to relapse ?