Chronic Obstructive Pulmonary Disease II

I wrote you recently about my wife and her possible diagnosis of chronic pulminary obstructive disorder. You gave me several herbs to use. This was very helpful.
I have begun giving her horsetail as you suggested and it is working providing some relief but more relief is needed. I already had her on garlic. I also have her on grape seed extract and stress tab vitamin A and zinc.
I am writing you to ask you your medical advice on the herb ginkgo biloba. From all my research this herb could help my wife a great deal more in addition to those herbs I am already giving her. The one danger or side effect I have learned about is case study of bleeding in the iris of the brain when combined with aspirin and subdural hematoma with chronic use. I know that horsetail is very high in silica. I think silica is an ingredient of aspirin or aspirin has silica in it. Am I right about this? And if I am right then I can not mix horsetail and ginkgo biloba together right? This is the core of my question.
Based on the herbs and vitamins and minerals listed above that I am already giving my wife, is it safe to give her ginkgo biloba in addition to these. And can ginkgo biloba be given along with horsetail safely? Can the two be taken together safely considering horsetails high silica content? And can horsetail and ginko biloba be taken together safely with the herbs and vitamins and minerals that I am already giving her listed above? Ginkgo seems to have so many good benefits and one of the main ones is to help asthma and lung problems. I want to help my wife in any way I can but I want to be absolutely positive that what I am giving her is safe.

Aspirin contains acetylsalisylic acid, not silica.
There is a potential of a dangerous interaction with garlic and Ginkgo, since they are both anti-coagulants.
I don't know what is in your "stress tab", so can't comment on it.
There are no other interactions with your herbs and vitamins that I know of.
Do not exceed the recommended dosage on herb packages. Be sure that the horsetail is Equisetum arvense. Other species of horsetail can be dangerous. Because horsetail is high in minerals, it should not be taken longer than one month, then take a one week break before starting again. The high mineral content can strain the kidneys.
Coltsfoot contains pyrrolizidine alkaloids, and should not be taken for longer than a week. Substitute with Elecampane and Thyme. Pyrrolizidine alkaloids may cause liver damage.