Hello, thanks for your question today! I am Dr. Drew, and I am a licensed veterinarian. I'll be happy to help you in any way I can.
Shampoo residue certainly can cause irritation.
It's also possible for there to be a reaction to one of the ingredients, so even if rinsed well, there could still be discomfort and itching after rinsing.
You can try giving Buddy some Benadryl, 1mg per pound of body weight, to see if that helps at all.
You might want to try a soap-free Oatmeal shampoo, to see if that provides more soothing relief.
You can order an oatmeal shampoo with Pramoxine in it, you might also find it locally, the Pramoxine is a topical anesthetic which numbs the skin to reduce itching.
what about the skin sores?
well, if they are deep enough, an antibiotic will be needed, from a veterinarian.
you can try applying neosporin-plus on them,
that's an antibiotic with a pain reliever,
how do you know how deep they are?
it may help reduce the discomfort and help healing,
if they are moist or oozing, they are deep enough to require oral antibiotics.
they do have scabs on them and he still digs at them do you think maybe it is a fleaaa thing too?
flea allergy is the most common cause of itchy skin in dogs,
primarily in the rear half of the body.
most sores are in the middle to bottom of his back and there is a rash on the underside too and he bites at the inside of his back legs too
well, that certainly could be consistent with a flea allergy.
oral steroids such as Prednisone are often needed to calm a flea allergy.
will all this help with that too
it will help, but may not be enough on its own.
a hydrocortisone cream such as Cortaid could be applied to the itchiest areas.
he has had fleas before and it did not do this
but it often isn't quite enough.
well, some dogs develop flea allergies over time,
just like people, allergies can develop or worsen as time goes on.
kind of like humans right well I thank you very much and in your opinion should I take him to the vet or do the home things first and see how it goes
If it's tough to arrange for veterinary care due to cost or other issues, then you could try the above described things for 24-48 hours, to see if any improvement is noted,
if not, then it's definitely time for veterinary care.
also, be sure the fleas are being killed, if any are still present.
Again thank you
you are very welcome!