indoor cat snuck past me out patio door since she doesnt run away i thought i would watch her for a minute but she pounced on something and i believe she got stung (live in northern illinois so culprits would be yellow jackets , wasps or honey bees ) she has shown no sign of any reaction swelling or any respiratory distress vet suggested a dose of a antihistamine and cold compress i feel bad for her discomfort anything i can do ?