Re: wheezing/coughing 9 year old
Gosh, I hardly know where to start. First of all, has she been tested for allergies? Or are you just aware that cats and dogs are a problem?
OK, next, have you considered allergy injections for her?
Third, you seem to be very into herbal remedies. Keep in mind, she may be allergic to them! For example, if she is allergic to ragweed, do not give her echinechea for colds. It is a member of the ragweed family. There are many things like that so I am always hesitant when people want to try herbal remedies for allergies! I won't use plant based makeup, etc as I am allergic to everything they test for!
Next, benedryl - should be OK at bedtime - 1 only at her age according to the box. But I would check with her allergist (and don't you dare say she goes to a GP!) or the pharmacist to be sure.
Hope this helps a little.