thanks Isksam. That makes sense. I also have eczema (from washing powder and lotions) and hayfever. But since starting solids with DS I seem to have developed an allergy to kiwi (got tickly/itchy mouth after eating one and haven't had any since). So when we started im on solids I didn't have any food allergies either!
Although in the UK the advice is dairy and wheat after 6 months for everyone. We will be following the American advice from now on!