If a patient has a sore throat after eating crabs, if the pain is only localized to one spot, it is likely that a crab shell was accidentally stuck in the throat while eating crabs, and the pain will disappear immediately after going to the hospital and having the doctor take it out. However, if the patient has eaten a lot of crabs, resulting in congestion and inflammation of the mucous membrane of the pharyngeal cavity or allergies, medication should be applied to treat the condition, such as topical spraying with Kaijang Jian spray or oral anti-allergic Desloratadine dispersible tablets to relieve the symptoms. You can drink more water to promote the metabolism of crabs in your body, and observe the changes in your condition, if it becomes serious, you can consider going to the hospital for further consultation.