MY CHIUAHUA STARTED ACTING FUNNY TODAY SHE WAS IN THE GARAGEWITH WATER BUT WE LEFT OUR GARAGE DOOR OPEN FOR THE FIRST TIME WHILE WE WENT OUT FOR HOUR, SHE WAS WEAK HAD A HARD TIME GETTING UP SHES BEEN GLOOMY AND STAYED AWAY FROM OTHERS AND NOW SHE HAS A QUARTER SIZE, BLISTER,LOOKING RED CIRCLE ON HER BACK SHE IS ITYCHING AROUNDIT&HER HAIR JUST PULLS RIGHT OUT AROUND AREA .TRIED TO GET TO AN ER VET THE WAIT IS 3 HOURS. WHAT DO I DO WHAT IS IT?