What is the expression after tetanus antitoxin desensitization injection

Desensitization injection method is to inject the required tetanus antitoxin (TAT) dose into the body in small doses. TAT is a heterogeneous protein for the human body, with antigenicity, after injection can cause allergic reactions. The main manifestations are fever, immediate or delayed seroses. The reaction is generally not serious, but occasionally anaphylactic shock can be seen, rescue can not cause death in time. Therefore, before the first use of TAT, allergy experiments must be made. The basic principles of desensitization are: Small doses of allergens cause less release of bioactive media, so as not to cause clinical symptoms; a short period of time for multiple drug injections can gradually consume the IgE has been produced in the body, and finally can be injected into the required dose without disease. But this desensitization is only temporary, after a certain period of time, IgE re-production and re-sensitization state. So if TAT is used again in the future, it is necessary to repeat the intradermal test.