Have had to have these sorts of conversations with a few people, male and female, over the years, as I worked with adults who were quite disadvantaged for a variety of reasons, some of whom had a 'blind spot' when it came to personal hygiene/odour. I found that the best way to broach the subject was to sit down with together with the person and to gently enquire whether they perhaps had a health issue, as it had been noticed that "they aren't smelling as fresh as they usually do" If you can do this kindly, maybe asking whether there is a health issue, maybe a new medication (some of which can cause an awful pong in that department) ...or even, a problem with getting laundry gone regularly. It's surprising how many of these hygiene issues can be tracked back to a very practical problem which the person is dealing with. The trick is to keep your tone gentle, your voice kind and watch your body language...don't avoid eye contact - if you can show that you are speaking from genuine concern and want to help if you can, most people will respond to that, albeit after a shocked silence and a few tears. Just be kind - imagine if it was you yourself with such a problem - you'd want to know, wouldn't you? I think that there are some good suggestions from OP on this thread and I hope that you can help this lady to sort her problem out with losing her dignity, or her job.