Ok so mojo has been having problems with collars...well this is what happens when i put them on he runs and screams and drags himself on the floor like he wants it off...so today i went and bought a harness and i thought it would change since it was fully around his neck..he is still doing the same thing but not as bad....but the first collar that i did get him he did have an allergic reaction to it but the harness is leather...any ideas will help