Eat crayfish allergy itchy skin relief methods are general treatment, medication, there is no clear fast solution. 1. General treatment: first of all, you should stop eating crayfish. 2. medication: external glycerine lotion, oral loratadine, cetirizine and other antihistamines, is conducive to the control of allergic inflammation; more serious, can be used externally, such as mometasone furoate glucocorticosteroid ointment or oral prednisone and other glucocorticosteroid medications, pay attention to the use of doctor’s orders. It is recommended to eat crayfish allergy to go to a regular hospital in a timely manner, under the guidance of the doctor for standardized treatment, in order to avoid delays in the condition of the body to bring about adverse effects, but also need to pay attention to ordinary times should be avoided to consume crayfish, to the body caused by the adverse consequences.