Mrs tanya

Hello, My mother in law was Diagnosed with stage 4 colon cancer and spread to her liver. she has done 1 round of chemo its been a month and doctor said she should have energy by now. her leg has swollen so bad, incontenice. they are going to lower her dose for next round of chemo but it doesnt look like chemo is working, what could be next. i asked how long does she have he just said it is very aggressive.