My youngest son has allergies. (I gave birth naturally, breast-fed til 8 months, he had lots of sun-exposure as we were always in park, he did have antibiotics 2x at about 3 months and my house is clean but not really clean!) I recently took him to a homeopathist, she implied, it may have been caused by vaccines. She gave me a leaflet, 'Dispelling Vaccination Myths' by Alan Phillips, which blames vaccinations for illnesses, autism,allergies and cot death-a terrifying read. According to the leaflet, it's not the virus that is injected that cause the problems it's the other stuff to kick-start the immune system these are toxic and can cause problems for some babies. I hope that this is completely untrue! I need to do some more research but it's very hard to know what to believe.