Is anyone else having CMF chemotherapy?

Hi everyone,
This is my first post.I have just had my first chemo, and know I`m on a kinder regime as I had a heart attack last October. The side effects are quite mild so far, and I feel guilty that I am off work.I work in a hospital in an outpatient department and am worried about meeting so many people and risking getting colds etc.
How do people cope with work?