is vistaril good for an insect bite
How It's Used. Hydroxyzine works against histamine, a chemical that can cause itching and inflammation. Itâs most commonly used for acute conditions, such as insect bites and stings, adverse reactions to vaccinations and blood transfusions, and snakebites. Because it has a sedative property and inhibits activity of the central nervous system, it is sometimes used as a tranquilizer and to treat stress in dogs.