This post is pretty old, so I am not sure if anyone will read this. I have an allergic dog and it is NOT food allergies. If you can solve your dog’s allergies by diet then you are lucky. I have struggled with my dog allergies for years and I can offer some helpful advice. Also, I just had to put my dog back on steroids after several years and I can say the side effect are bad (the reason I came here). Anyway, I found a pretty good solution to manage my dogs allergies. You need to give the dog a bath every week using Ketochlor shampoo followed by a hydrocortisol shampoo. I put a video up on YouTube about it that nobody watches. Search for “Solution for itchy dog Nutfork”. I really hope this can help you! Dog allergies are really frustrating!
I had three injections all of which worked for a few days to two weeks then stopped. The excruciating pain returned and only Vicoden 5 mg 3-4 times a day controlled the pain. Vicoden at that dose is the lowest dose prescribed. it worked perfectly for several years and doctors refused to prescribed opioids for fear of losing their license. My sister recently died of throat cancer and she complained constantly of pain. She died with unrelieved pain. As a cancer patient she was prescribed Morphine 2 mg. every 6 hours. That is beyond ridiculous but keeps our doctor’s license safe. Our doctors are violating their Hippocratic oath – Do No Harm. They had added a caveat “except when the government is breathing down your neck. Then the patient be damned. I am glad this helped you Randy. I don’t know your clinical status but I am sure it differs from mine. Do you have severe and crippling arthritis?
Activated charcoal can act as an adsorbent (kind of a "chemical sponge") to bind toxins in the gut. If you use a preparation that is safe for people and use a smaller dose, it should be harmless.
If the problem was an insect sting, I doubt that there are any toxins in the gut that the charcoal would help with.
So many times we are unable to determine the source of the allergen.
Kenalog is a long-acting corticosteroid (cortisone) injection that stays in the body for weeks, where the dexamethasone lasts only a couple of days.
Antihistamines like benadryl are often helpful for something like an insect sting, even though most dogs don't get much relief from them in regard to allergic itching.