I usually have streaks (lightgolden) put into my hair which is naturally dark brown by my hairdresser who is overseas. I went to another one last week and the straks have come out almost a gray colour. Can I add a colour to them to turn them to a light golden colour with out redying my entire head of hair and then redoing the streaks... I DO NOT want to go back to this salon as I have done the streaks before myself with better result.

Its sounds like the hairdresser didn't use a filler before she dyed your streaks. You use a filler on blonde hair before dying it darker so the dye has something to stick on to. When you bleach your hair all the melanin is removed and when you dye over it without a filler, the brown fades to a grey color.

I would suggest going to another salon. And make sure they use a filler before they do it. I work in a salon and I'm surprised the woman who did your hair didn't use one. Its hard to do streaks by yourself especially when dying blonde darker, because it will continue fading no matter how much you dye it unless a filler is used. Get it done professionally they can do it right and make sure it doesn't fade out. I am excellent at hair and I can't even do my own streaks! Hope this helps.