Hydrochloric acid is a very corrosive and irritating gas, and a small amount of inhalation may cause irritating choking and coughing, but the inhaled gas will be metabolized by the body very quickly, so a small amount of inhalation will not affect the body too much as long as you drink more water and eat more fresh vegetables and fruits to speed up the metabolism and excretion of hydrochloric acid in the body, and will not lead to sequelae. Inhalation of large amounts of hydrochloric acid may cause damage to the airway mucosa of the body, and clinically, in addition to irritating cough, it may also show symptoms of hemoptysis and dyspnea, and in severe cases, it may even induce pulmonary edema and complicate respiratory failure. Therefore, in this case, it is recommended to seek medical attention and provide timely rehydration and diuresis to promote the metabolism and excretion of hydrochloric acid in the body, as well as to provide symptomatic support and other treatments.