I second all of the suggestions of gut healing and whole foods eating. I think I read in one of your comments that you are now vegetarian/vegan? That would be something I would encourage you to reconsider. While short term vegetarian menus might be helpful for a cleanse, it does not offer the proteins and animal fats your body needs for healing. Natasha Campbell McBride has a real good book on gut healing and the GAPS diet. I think you are also wise for trying homeopathy. Homeopathy gets to the root of the problem and roots it out. It can also provide you with relief while you are working on healing through diet. The hardest part is finding the right remedy for you. You may need to try several in order to find the right one. I have found that the combination remedies purchased for "allergies" are lower potency and can help temporarily but they don't always root out the underlying issue. Calc Carb 200c, one dose every other day is a good remedy to take to try to root out the underlying problem. It is a slower acting protocol and may need to be taken for a year or more. I have, however, seen improvement within a week with this remedy. If there's swelling of the lips, tongue, throat, eyes, etc. Apis Mellifica 6c, 30c or even 200c. The more severe the reaction up to anaphylaxis (use 200c), the higher the potency should be chosen. In severe cases it can be used every 3 to 6 hours, until improvement is seen. If not so severe try two or three times a day. A really good web site for learning more about using homeopathy personally is http://joettecalabrese.com/
There is a search engine to look up conditions. Joette uses a different method than the typical classical homeopathy usually used here in the US. She is classically trained and practiced it for 20 or 25 years but has gotten better results with the protocols she now uses. She is the homeopath our family uses to consult with.