Well, mullein is a good decongestant... I have asthma too, and SMOKING it is supposedly good for asthma, but I have never tried it.
Nettle is supposedly good for allergies...hence allergic asthma, also, I dunno, I have just heard this and have every intention of trying it.

"herbal antihistimine" ... it's not any of the Ephedra family. They are decongestants related to Pseudoephedrine.

I have found that DAILY doses of Echinacea are good for repressing the production of histamine. I use 2 capsules of the Nature's Way powdered leaf or whatever, EVERY DAY. It minimizes the allergy symptoms for me.

Thanks for the prompt replies - Sudafed never worked for me, so I guess the ephedra plants won't do it either, hehe. I may try the echinacea route. However Primetene mist, basically inhaled ephedrine, does work for my asthma so maybe I could use it for that(?) Probably just easier to buy the inhalers...

Try Querticine complex for the allergies and freeze dried stinging nettles good for the asthma and alergies.

My asthma has been so bad this year from California's rains that I take so MANY meds for it Advair, Combivent and Singulair. Not being able to breathe is no fun!

I haven't used mormon tea. However, ma huang tang is not just for decongestant. If you use it for chest spasms or tight rib muscles from infections as well as allegies it will work fine. Decoct ma huang (9 grams) in water(about4cups) about 20 minutes.Remove the froth. This is a strong diaphoretic. It will treat wheezing and is used primarily for that if used by itself. The Chinese use it in numerous formulas to treat exterior cold.