My recently rescued Husky (2 year old neutered male) has been itching excessively
since we got him. The vet first checked for fleas, No fleas, then thought it was a wheat allergy so we changed to wheat free diet. (Blue Buffalo and then Wild Buffalo salmon) Even got rid of treats containing wheat.

Currently I am adding Salmon oil to his food and even gave him a bath using Aloe and Oatmeal dog shampoo. He is still itching and losing guard hairs. Any other ideas?

Don't feed him kibble. Put him on some boiled chicken and scrambled eggs for a while. See if that helps. If it does, start adding other ingredients to the mix: rice, turkey, fish... all raw and one at a time. It sounds like a food allergy but probably not a common one. In such situations you need to completely limit his diet and figure out what the cause is by process of elimination.

Heather's husky Koda is allergic to potato, which is in almost EVERY kibble. So do a limited ingredient raw diet and see how you do.

It could also be pollen allergies, where exactly is he itching, face paws, sides? or base of tail, legs, belly? Are his ear flaps red? Does he have inflammation in his ears?

Or it could be a flea allergy; a single flea bite can cause an allergic reaction that can last up to 2-3 weeks, and dogs can pick up a single flea on daily walks or the backyard. Just because you don't see any doesn't mean he couldn't have gotten bit by one.

And to rule out food as a component, I definitely would go with what Tori suggested.