Below is an instruction from Human. Write a response.
    ### Instruction:
    What to do for Cyclic Vomiting Syndrome ?
    ### Response:
    During the prodrome and vomiting phases of cyclic vomiting syndrome, a person will generally take in little or no nutrition by mouth. During the recovery phase, the person may be quite hungry as soon as the vomiting stops. As eating resumes, a person or his or her family should watch for the return of nausea.
    