My mom is on chemotherapy.  She has had 7 sessions and the chemo instead of reducing the tumor has increased it.  The fluid in her belly has increased also and now her legs and feet are hurting from the swelling.  She now can't wear her usual clothes and cannot fit into any of her shoes.  Little by little she is prefering to stay sitting down and all because of the swell. 

They've told her that it is because of the tumor and that the chemo will help, but I've also read that it the chemo's side effect that has produced more liquid in her body.  Surely if it is so common, there must be a way to sooth this. My mom's life is becoming miserable and purposeless for a side effect. Can anyone help?

Also, will the stronger chemo that she is starting this next week, make everything worse?

Is there some diet, or exercise, that could help her?

Thanks.