working with secondaries, & having chemo

Hi have any nurses with secondaries carried on working? I have lung secondary and bc recurrance had it in 2008 and now again in 2012, having weekly taxol which is currently working well, lung nodule disappeared and breast lump shrinking. Discussed going back to work , phased return but i work as a RMN , mental health nurse and oncologist is concerned re risk of infection. Just wondered if any nurses out there in similar situation.
On half pay now , lovely agenda for change now do not pay unsocial hours after 6 months off sick , so flat rate halfpay not good!
Need to get back before beginning of oct as it wuill then be 12 months off.