1
general::
Phrase(s): What more can I do? [and] What else can I do?
I am at a loss to know what else to do. Is there anything else I can do? (An expression of desperation, not an inquiry.) • Bob: Did you hear about the death in the Wilson family. Bill: Yes, I feel so helpless. I sent flowers. What more can I do? • Bill: Is your child still sick? Mary: Yes. I’m giving her the right medicine. What more can I do?
McGrawhill's American Idioms And Phrasal Verbs