Heart Surgery Aftermath: Infection Options?

A friend of mine underwent open heart double bypass surgery (90% and 60%) and 5 weeks later has developed a serious, infection on the incision wound. The products I have considered recommending include Echinacea Plus for internal immune stimulation, Anti-I for topical wound application and the Cayenne Tincture, Heart Tonic and/or syrup to support the all-imperative cardiac muscle.
Any holes or misjudgements in my amateur diagnosis? Other methods or products by Schulze or others that have worked for others? Also, procedure for quiting medications would be helpful.

Heartful of Gratitude,

Jesse