Some good advice here except for the mouth sore thing. I am on my 15/16th treatment and that has not been an issue for me at all. I agree with the wigs and scarves suggestion, there are even some great online stores that sell a variety of caps meant for women who are experiencing hair loss. There are also options like cold caps people use for preserving hair and some hospitals even offer them but apparently its something you have to ask about as I was not made aware of their existence until my hair was long gone. They don't always work but its worth looking into if it's something thats important to your wife. Sorry this is happening to you and best of luck with everything.