What are the symptoms of allergic and irritant contact dermatitis?

I just want to check with other pet owners to make sure my veterinarian's diagnosis is correct, as I've never heard of allergic and irritant contact dermatitis in dogs. My dog has sores all over his paws, which are very red. I have to keep him from licking at them, because if he does, they bleed. Does this sound like allergic or irritant contact dermatitis to you?

The only person to tell you that is another vet. We cannot examine or see or know your dog's history. If you are concerned, first discuss with vet cuz you obviously didn't ask enough questions there then decide if you want a 2nd opinion. For these types of skin problems I advise going to a dermatologist vet who has far more experience in handling allergies/treatments than the average vet. Write down your questions before speaking to vet so you don't forget any.