So we made it out of Mexico with our two Corgis (yea!).  However, we have unexpectedly had to deal with skin issues on both of our dogs (once in Tank and twice in Ace).  They get white bumps all over their body and develop severe scaling (scales) on their skin.  The vet thinks they are allergic to the rag weed in Virginia, but it dawned on me that we switched them from Front Line to Advantix because of the problem with ticks where we live.  Besides the Advantix and change in environment,…