[Rexi]

I put a generic Frontline type medicine on my dogs yesterday. It was the first time using this brand. About two hours later I broke out with hives on the back of my legs. I am still not sure if it was the meds or not but it was the only thing I could think would cause the reaction. Has this happened to anyone else?

[Ruby]

I'm sure it could've been the Frontline Rexi. There are some powerful chemicals in these medications. Did you know they don't recommend pregnant women to apply them? It must be very dangerous when they start recommendations like that.