My 7 months DS started with severe diarrhoea last Wednesday morning and it's still going, I really thought it would clear up but it's got worse every day, he is filling his nappy every hour sometimes more and every time he passes wind loads of mucous comes out, his stools are just watery/mucousy. It started with a cough a couple of weeks ago then this started, temperature on and off. Has anyone any tips for firming him up as his bums red raw as you can imagine, have had medical advice and they gave him rehydration sachets and said it will pass