Some cancers are able to affect the strongest immune system.
Be aware of certain changes that could occur from the cancer treatments. Your doctor can tell you know all the effects that medications and treatments may have. If you appearance makes you uncomfortable, you might want to buy a wig or if your complexion gets pale, then consider wigs and makeup.
There are various people who have outdated feelings towards cancer. Some people might think that cancer as being contagious or you might not have the capacity to work anymore. Make it a point to be completely transparent and open dialogue on the subject.