After receiving the Fly HM from Chuck's wife, I retreive my owl from the PC so I could use it.
My owl then flies me back to Olivine City, and I make my way back up the lighthouse.
I then give the medicine to Jasminex so she could give it do Amphy.
Amphy is now perfectly healthy, which makes Jasmine able to go back to her gym with a clean conscience.
Jasmine uses the Steel Type, so I mainly rely on Geodude for Magnemite 1, Crocanaw for Magnemite 2, and Ampharos for Magnemite 3.
I then get the Mineral Badge and start to head for New Bark Town yo talk to the professor.