Acute formaldehyde poisoning is usually a one-time inhalation of excessive formaldehyde gas and the emergence of the first must be detached from the scene of the environment, and then transferred to a ventilated environment, conditions can be given oxygen. You can add more liquid or intravenous rehydration methods to speed up the body’s formaldehyde metabolism, so that the symptoms can be relieved as soon as possible. Secondly, symptomatic treatment is the main, if formaldehyde irritation of the eyes, leading to eye dryness and pain, you can apply lubricating eye drops, such as the use of Runran eye drops. If it leads to irritating cough, bronchodilators can be applied. If the gas leads to laryngeal edema or even pulmonary edema and thus to respiratory difficulties, anti-inflammatory treatment with glucocorticoid drugs must be applied, usually dexamethasone or methylprednisolone. If there are signs of generalized skin with allergic urticaria, oral loratadine or intramuscular benadryl can be given.