Originally Posted by doggie_poopie
The Benadryl dosage is 1mg per pound. Allergies have a layering effect and a healthy dog may be able to fight off an allergy, but put multiple allergies on him and the body can't take it. So try to eliminate any possible allergies you can.
The sucessful vet clinic I work at sees this problem daily. The easiest and 1st thing we suggest is changing from a high level grain/by-product diet to a better quality kibble. Better foods cost more at time of purchase but actually save you about $100 per year/per animal since the pet eats less.
Also, wiping your pets feet off after coming in from outside helps.
Pets may chew at feet due to pain, yeast, bacteria, and/or fungus.
Good Luck!