Our 51/2 year old ds has become obsessed with 'germs' and washing his hands. It's getting ridiculous - he saw Blue Peter the other day which talked about dust mites etc. and now he is obsessing about the house being clean and his bed being clean and if the mites will eat his skin. My dh & I try to keep him calm about it and reassure him and try to get him to 'shake off germs' rather than wash his hands every 5 minutes (they are getting red and sore).
Any tips on how to deal with this?