First learn to use the Windows version to understand the basic operations 始徒医学输入法简明使用教程（三步即可）-Windows版
Then use the iOS and iPadOS versions based on this GitHub - imfuxiao/Hamster: librime for iOS App
Apply for the built-in Shitu Medical Input Method GitHub - imfuxiao/HamsterInputSchemas: rime 输入方案整理