I see you do not mention fruit and veg. With the help of a consultant immunologist I am realising my salicylate sensitivity impacts on the, my thyroid function. I realise this will not cause everyone a problem but as salicylate is a toxin, utilised in aspirin to help with pain, it is possible to have too much of it, we all can take different even fluctuating levels some of us with several intermittent problems others with more intense ones. Skin problems can be one manifestation. Many most plants make salicylate to protect themselves from moulds and mildews. I am unable to see you food diary so I will list some of the key high foods. Olive oil, tomato purée, vanilla - this flavours almost everything, herbs, spices, pineapples, apples, dark green veg. There is an official list on the Salisilate Sensitivity site and also from the first dietitians work, Anne Swane and her colleagues from her Australian hospital. This site also has a list of related health problems.

Hope this is not you. It is difficult to find medics who know much about it.