I was going though HSR type 3.There's a classical example of it which is "serum sickness" (foreign serum). It says like if a person got bitten by a venomous animal we gave that person An antivenom agent(Antibody reactant to antigene venom). And in reaponse to that body would make antibodies Against the venom-antibody.. And Let's say the the person got bitten by same animal containing same venomous antigen... This time body will make antibody, make immune complex with the anti venom antibodies.which are treated like an antigen and finally causing Vasculitis. So my question to you what should we do for this person who got a second exposure to venom and that all.