should be ok now, the froth is nothing to worry too much about, remember heat is the cause of the problem so it is better to cool down than keep warm. fluid intake is a definite thing to achieve but personally i would just use water as the heat will cause the muscles to leech there contents into the blood stream. by using electrolytes you are adding more. there fine if its nothing more than a little over exertion but a no, no in my view if your dealing with full blown Acidosis or Rhabdomyolysis , glad to hear the dogs now ok.