Similar to other posters, I am also very sensitive to allergens and have bad allergies. I was having a hard time at first when I got my lil Scottie and took Reactin daily.
But eventually my system 'adapted'. I went from having runny nose, itchy watery eyes, to just itchy eyes if I touch him and then rub my eyes. The obvious simple fix for me was just to not touch my eyes
Oh and when I comb his hair, I wear a mask to make sure I'm not breathing in his loose hairs.