My nanny has been diagnosed with stress and now has been referred to counseling and anti depressents. She has indicated that her treatments are ad hoc (whenever the NHS can fit her in) so I would not know when she will need to take time off or for how long. Unfortunately this presents many issues not least of which her suitability to look after children, but critically I would like to understand what I need to be aware of from a legal perspective as an employer in deciding what I should do. ANy other non legal advice would also help.