Need help with my dog.

I have a 6 1/2 year old Rhodesian Ridgeback. Within the past 3 years or so, he has developed allergies. I say developed but maybe they were always there and something kicked them into overdrive. His scratching got so bad at one point he tore off the tip of his ear. It looked like a crime scene in our house. Over one year later and I am still finding random blood splatter… This all caused a skin yeast infection that took many antibiotics, baths, and other lifestyle changes to finally get “under control”. He still gets random small spots and his hair falls out.

About 3 months ago he began rubbing his snout on everything he can in effort to scratch his itch and he is licking his snout like crazy. I checked his mouth to be certain he does not have a tooth problem. He does not.

We have had him tested. He is allergic to life. He is allergic to grass, weeds, trees, soy, and many other things.

We tried allergy shots for about 6 months. Even after lowing the dosage, they made him terribly sick to the point we had to discontinue them.

We have altered his diet. That seems to help a bit but not anything life altering for him.

Daily we have to give him 2 Benadryl and a Zyrtec. This brings mild relief but does not stop it. I am terrified about the potential long-term health consequences of doing this.

His coat gets “greasy”. We bathe him at least 3 times per week using MiconaHex+Triz. We dry him well. That seems to give him mild relief for about 24 hours or so.

He is an indoor dog. Getting him to go outside is like trying to get Madonna to keep her clothes on. So his outdoor environmental exposure is limited. When he does go outside, we put rubber soled boots on his which has helped with his raw and irritated paws and we now keep the backyard pretty much scalped.

Do any of you have any ideas of how I can help him? I am just at a loss and it’s breaking my heart. I don’t have any more answers and neither do the vets here in Alabama.

Thank you in advance.