How can I get the smell of sour milk out of a carpet?

[cafebistro]

DS has spilt milk on his bedroom carpet and not told me about it. I went into his room today and the smell just hit me! What should i clean it with to get rid of the milk and the odour??

i have had this.
I damped a tea towel with water then sprayed loads and loads of febreaze onto the tea towel then lay it over the patch. Each time it dried out, i sprayed it again with the febreaze.
Leave it lay over the patch completely covering it for a couple of days and keep spraying the febreaze.
It did work ok.
Give it a go.Oh and open the windows, loads and loads of fresh air in there.

Thanks deanychip.

damp the stain
bicarb of soda, spread thickly
leave till dry
hoover
bingo

I had this. After some frantic googling I found the best solution was a cube of biological washing powder dissolved in some water. That did the trick.

Will try that in the morning thanks Wilfsell, ive got bicarbonate of soda in cupboard thanks