xeloda and effect

Dear All
I have had one weeks worth on xeloda and the rash has virutally diappeared. I also had a small lump on the end of the scar and this feels softer and a little sesame seed thing is also a wee bit softer. I know one week is a little early to know but does the lump thing shrink slower than the rashes if the drug is working?
Any advice /expereinces would be appreciated.
thanks
love
linda