Being strictly a nocturnal animal, any hedgehog found out during daylight hours will almost certainly have a problem, though not always apparent. Please do not leave it unattended
First thing to do is to pick it up by slipping fingers under its tummy, or place a towel over it and put it into a deep sided cardboard or plastic box.
Fill a bottle with warm-to hot water and place under an old towel or jumper in the bottom of the box.
Put the hedgehog on or close to the heat source and cover with another towel. It is essential to get the hedgehogs body temperature up to somewhere near normal, otherwise its body functions will rapidly deteriorate.
Having done this, find a secluded area indoors which is warm and dry, keeping children and other animals away ...noise or disturbance will stress the hedgehog further.
NOW CALL SOMEONE TO HELP YOU
You can contact us on 01706 860904 - Rochdale Hedgehog Rescue
or contact the Hedgehog Preservation Society on 01584 890801 who will give you the number of the nearest carer.
Do not however watch the hedgehog over a number of days to see if it recovers as it may be then too late to treat it properly.