Hi Yazmin, have you bred this puppy? One month old is far far too young to leave their mum.
As for feeding……try a puppy milk formula. Do not give cows milk, puppies and dogs cannot digest it.
You could also give some runny baby rice mixed with the puppy milk. At one month old the pup should be able to lap. Once a day you could give a tiny ball of minced steak…and I mean tiny, about the size of a peanut to start with.
Good luck and I hope the puppy thrives.
this might sound weird, but have you had her thyroid checked? a friend of mine had a young cat with excessive grooming habits and it turned out to be thyroid problems.
Have you gotten all grains out of his/her diet? No grains in food or treats. Find a grain-free kibble that lists real meat as the first 2 or 3 ingredients. Real meat will be: beef, lamb, elk, salmon meal, etc. Do not buy anything that lists “by-products” in the ingredients – they could be nothing more than feathers.
To help the skin heal you can rinse her once per day (short haired dogs, less often for long-haired dogs, you don’t want her constantly moist) with a mix of 1/3 vinegar and 2/3 water. Allow this to dry on her skin.
Also if you have been using Benadryl try switching to a generic Zyrtec – it often works better for dogs.
For the active hot spots try Witch hazel with Aloe, you can find it in any drug store OTC, pat it on with a cotton pad and allow to dry – you can do this several times per day to help reduce itch and help the spot heal.
Good luck!