My family has a secret recipe of traditional Chinese medicine for treating cancer, but my family has no medical qualification certificate. They are farmers. Can I prescribe medicine for others?

What you said is not very accurate. Few people suffered from cancer in ancient China. Traditional Chinese medicine handed down this secret recipe from generation to generation. Cancer is a modern disease. You can't prescribe medicine to people who are not qualified to practice medicine. I am a Chinese medicine practitioner from primary school, and I used to prescribe and fill medicines. Like rheumatism and stomach diseases, these diseases can't kill people. You are different here. Cancer, you think, will die if you can't cure it. As long as someone accuses you, you will be sentenced. As little as ten years, as much as twenty years. This is no joke. If your prescription is really so magical, you can apply for a patent. Then try to sell it.