Every cancer has its own standard treatment plan based on how far it's spread clinically and pathologically, so in your case, chemo is clearly the call.
Since you didn't mention what specific type you're dealing with, I can't say if there are other paths... you'd need to talk to a specialist for that. But given how much it's spread, the options are pretty limited, and I'm afraid chemo is probably unavoidable.
If you're just worried about the chemo itself and those nasty side effects, rest assured your doctor will do everything possible to manage or block them.
Just a reminder, you always have the right to get a second opinion from someone else.
Since you didn't mention what specific type you're dealing with, I can't say if there are other paths... you'd need to talk to a specialist for that. But given how much it's spread, the options are pretty limited, and I'm afraid chemo is probably unavoidable.
If you're just worried about the chemo itself and those nasty side effects, rest assured your doctor will do everything possible to manage or block them.
Just a reminder, you always have the right to get a second opinion from someone else.