Can allergies to mold and dust cause burping?

No: Mold and dust are airborne allergens, with the usual symptoms being runny nose, stuffy nose, mild cough, and itching in the nose and/or eyes. People whose have asthma symptoms can get more wheezing and coughing when the air has mold or dust. Burping is not a respiratory symptom, but instead is from air escaping up from the stomach. Burping is not caused by airborne allergens.