What medication should I take if I'm allergic to eating crawfish?

Generally, under a doctor's guidance, medications such as Loratadine tablets, Cetirizine hydrochloride tablets, Prednisone acetate tablets, Aluminum magnesium carbonate suspension, and Vitamin C tablets can be taken to manage allergic reactions to crayfish. If discomfort occurs, it is recommended to seek medical treatment promptly. The detailed explanation is as follows:

1. Loratadine Tablets

During an allergic reaction to crayfish, the body's immune system releases substances such as histamine, triggering symptoms like itchy skin and rashes. As a second-generation antihistamine, Loratadine can rapidly alleviate mild to moderate allergic reactions.

2. Cetirizine Hydrochloride Tablets

Its mechanism of action is similar to Loratadine but works faster. It is particularly effective for acute allergic reactions, such as rashes and itching that occur rapidly after consuming crayfish. By inhibiting histamine-mediated increased vascular permeability and smooth muscle contraction, it reduces local swelling and itching caused by allergic reactions.

3. Prednisone Acetate Tablets

This medication is suitable for moderate to severe allergic reactions, such as laryngeal edema, widespread rashes over the body, and fever. It suppresses excessive immune system activation, reduces the release of inflammatory factors, and alleviates vascular inflammation and tissue damage.

4. Aluminum Magnesium Carbonate Suspension

Some allergy sufferers may experience gastrointestinal symptoms like abdominal pain, nausea, and vomiting. Aluminum magnesium carbonate can neutralize stomach acid and form a protective layer on the surface of the gastric mucosa, reducing irritation from stomach acid to damaged mucous membranes and relieving gastrointestinal discomfort.

5. Vitamin C Tablets

Vitamin C has antioxidant properties that enhance capillary elasticity, reduce their permeability, and decrease fluid leakage from blood vessels caused by allergic reactions, such as skin edema and mucosal congestion.

Once an allergic reaction occurs after eating crayfish, consumption should be stopped immediately, and the severity of symptoms should be observed. If symptoms are severe, prompt medical attention is recommended, following the doctor's instructions for treatment.