DS2 is 2.7 and is cows milk protein intolerant. When he was diagnosed we also excluded soya. Then the hosp suggested that we tried soya last year, and he was fine, so we moved from Neocate to Alpro jnr soya milk last Dec/Jan, giving him soya milk on his breakfast and either custard or yoghurt once a day, plus allowing him all the 'hidden soya' in bread etc that we'd previously avoided.
All has been fine until about six weeks ago when his nappies become horrible. 4-6 stools per day which were mucousy, liquid and smelt odd. He's also told me that his tummy was sore a few times and hasn't generally been himself. His gag reflex has been really sensitive too. We've had to change his bed and shower him most mornings due to explosive early morning poos.
On Monday I cut soya out of his diet again (well as much as possible, we've been away so less control of diet). He's been better each day, happier and with increasingly more normal nappies. It's the soya, isn't it? Can a food intolerance go away and then come back?