I have a bad breath. So that I go to my dentist and clear the plague and remove the decaying tooth. Because of bad breath, my nose allergy activated because the smell get to the back of my nose. But it keeps coming back, the bad breath and my nose allergy. Mostly, my nose allergy activated because of perfume, dust, stinky smells, and morning fog. I got check my nose to an ENT and he cleared my nose and make me use a nasal spray steroid. It was gone for a while but it come back and still the same. I thought that i have fungi in it coz my nasal spray on the tip of it which the part where you insert it to your nose has grow some fungi. But thats not it, I think. Because I got acid reflux that i havent really paid any attention but when i eat foods with tomato, my nasal allergy activate but i only smell a certain smell which is foreign but not so smelly. This smell also smell by other people around me from my nose. Im not sure if I have H.Pylori or ulcers or SIBO or any chronic digestive probs. But I got ultrasound my whole abdomen it says its normal.
My questions are "What can I do to stop this? ", "What is first I have to do to clarify my condition with minimal cost?".