I don't know if this has any significance, but I seem to be overly allergic to Leni. I break out in very itchy hives every time I touch her. I can take a Loratidine to take care of that.
I have the same issue you do. I am extremely allergic to Harlow, and Degan barely bothers me at all. Anywhere Harlow licks me, or if her teeth touch me I will immediately break out in hives.
Harlow used to get bumps like Leni's all the time when she was a pup, and we switched from solid gold, which is bison based, to Wellness core, which is grain-free... and although she does still get the bumps it's very rare, and nothing a little benadryl won't clear up.
Gotta love white dogs!