Herbal Asthma Tea?

Was surfing around and came across this posting for:

Herbal Asthma Tea

This blogger states that this tea concoction helps with her asthma.

Some of the ingredients are:
Lemon Verbena: known for stopping wheezing.
Skull cap: is good for respiratory health.
Chamomile: It’s a relaxant, anti-allergenic, antispasmodic and anti-inflammatory.
Caffeine: Suposedly has a effect on asthma.

Here is the Recipe on the site

Asthma Tea
1 part of each in dried herb form - Chamomile flowers, Passionflower, and Echinacea Root
1/2 part each in dried herb form - Licorice root, Elecampane root, and lemon verbena leaves.

Not sure if this all works but check the site to see what you think.

Enjoy.