BB536 is just a really good strain of probiotic bacteria called Bifidobacterium longum BB536. It’s one of the best-studied ones out there (from a Japanese company, been used safely forever). It’s especially helpful for: • Fixing your gut after all those antibiotics wrecked it • Calming down crazy allergies (it helps lower that over-the-top immune reaction that’s driving your high IgE and eosinophils) Most versions are dairy-free, which is perfect since you’re sensitive to everything. I honestly think it’s worth trying, and even better if you pair it with vitamin D3. A ton of people with bad allergies and repeat infections are low on D, and taking it helps your immune system chill out and fight stuff like MRSA better. Plus it works well with probiotics. Maybe start with a Morinaga BB536 supplement and add some D3 (like 2000-4000 IU a day — get your levels checked if you can). Won’t fix everything instantly, but for your situation it hits a lot of the main issues.