A snort and a yip: Pugfest takes place in Derry Township Fleas are a common problem for dogs and cats and are the number one cause of allergies in pets. Flea allergy dermatitis can occur even after the bite of a single flea, so you will not necessarily see the evidence of an infestation on your pet. So, if it says 2 cups in the chart and you feed your dog twice daily, each meal should be 1 cup. Puzzle …