I have 3 girls, all between 4-5 years old. Two of them have had drastic hair loss in the past 2 weeks. The third one (usually my problem girl) shows no signs of any of this) Sadie received her vaccinations about 3 weeks ago but Monkey has had no changes that I can recall. Sadie had drastic hair loss on her tummy overnight. Two weeks later, I see no sign of new hair growth. Monkey lost a good deal of her hair on her back. It is not really at the base of her tail like classic adrenal disease, but more in the middle of her back. On both girls it occurred within a matter of 1-2 days. Sadie also had a bump removed from her shoulders which came back as a severe allergic reaction. Obviously, I think that this might have something to do with her hair loss but the bump was present 4-6 weeks prior to the drastic hair loss and Monkey never showed had anything like this. If anyone, Dr. Williams included, has any ideas on this, I would appreciate your input. Additionally, if anyone could help with the correct benadryl dose for allergic reactions, that would help also. I have 12.5mg per 5ml. Monkey weighs 1 pound (a little girl) and Sadie weighs 1.5 pounds. Thanks. Jean [Posted in FML issue 3223]