My boyfriend has raised bumps from his thighs to his rib cage, almost looks like allergic hives but his diet, soaps, and detergents have not changed. Benadryl helps, but only controls it until it wears off. I don t know what else it could be other than an allergic reaction, however, his throat doesn t itch and hasn t felt like it s closed. I m not sure what I should do. Suggestions?