Eradicated asthma and allergy

Hello. Fifteen years ago, I accidentally discovered a plant that immediately cured my allergies. Then, friends who came to visit me had their asthma, which they'd had for 40 years, cured in one go. For 14 years, they've never suffered again, no more treatment. Eradicated!!! I tried to contact laboratories through a lawyer, without any answers. It's appalling... What advice do you have?