I am 42, on HRT tablets and suffer with Rosacea so have very sensitive skin and scalp. I have mousey brown hair styled in a bob and it is greasy. I tend to use a multi-lights kit to add a bit of colour but the last time I used it I left it in too long and some of the colour is yellow which I do not like. How can I get rid of this colouring? Is there a mild type of dye I can use which will not irritate my skin or scalp?

You obviously colour your hair at home and unfortunately things can go wrong. It is very hard to diagnose this via e-mail, but I will try. Most colours in the shops contain quite strong chemicals and may well irritate your scalp - they can also be misleading as some will say shampoo in which suggested that it is mild and will automatically shampoo out NOT THE CASE. You need to tone the Yellow by using a toner to neutralize it but this will be difficult as it must be a violet based colour and you will not be able to choose the right one in the shops. My sound advice is to do the following. Go to a professional salon as a client or a model evening and have them correct it for you. Salons will normally have three types of colours - Permanent - Demi-colours (more gentle on the hair and scalp) and Semi-Permanent colours (these create beautiful tones but do wash out within 3 weeks). Get the salon to do a Skin Test on all the colouring products to see if you react before having any service. You can up keep your main colour at home with the guidance of the salon but if you want any Highlights please do this in the salon not at home. Good luck