I Have Began Using Azelatin Nasal Spray & It Has

I have began using Azelatin nasal spray & it has given me back my life that was controlled by perennial allergy symptoms. It, also, seems to be helping my severe gastrointestinal (SIBO) /yeast problems, too! This is also a life-changing improvement for me.. Can you tell me why it is also helping that health issue as well? thank you for your knowledge and your professional help