Does chemo kill the primary tumor and the other tumors?

I know my sister's tumor inher lung is in remission..YEAH!!!!  But what about the metastatic disease in her bones and lymph nodes? Her bone cancer has eaten away her femor  bone but just a hairline fracturen now if your in remission is that also? This cancer thing is very confusing...I cant even get excited when she is in remission cause she has to have another week of chemo and worried once the bone is ruined, how can chemo fix it? Now they want to do the radiation of the brain...she is pooped and wants to rest and so do I. She is mad at me for writing her doctor and all he would say is that he received a very disturbing letter from me so she didn't know what I said so she was furious and upset and that made me feel like a looser. I just asked why dont they give her Epogen for her anemic and fatique. I'm just worried about her and no one in my family will tell the doc that she is smoking a pack a day now and I'm scared she wont be in remission long doing that. (She dont know I wrote that but I kinda wanted the doc to lecture her about it) but he didnt cause i said please dont tell trudy that I wrote this letter) I just wanted her not to know it was me but he could of lectured her about all the smoking. So I accomplished nothing except getting everybody mad at me.  I feel like a big jerk!

Whoa.....just read my message about being a jerk. Sorry for that post (too much wine that night)Just wanted to know if your in remission is all the cancer in remission? The bone disease,lymph nodes also? When will trudy start feeling better its been 12 days since chemo was in remission and she feels the same. Now her FMLA has been 12 weeks, but she never recieved any notice from work that her time was up and she needs to starts the cobra plan....so while they are fixing this mix up...my sister goes without meds that she needs for pain, high blood pressure, nausea.bloof transfusion set for monday but now we dont know if she can get it since they are saying her insurance is over. So she is in remission till they straightened out her insurance. More BS that a cancer patient shouldn't have to deal with. 

Thanks for all the great replies...sorry to bother everybody with my problems.