1, respect privacy: If they don't have a particularly close relationship or the other party doesn't take the initiative to mention drugs or health problems, you can choose to respect each other's privacy. After all, this is a personal matter.
2. Caring and asking: If two people are closely related, you can ask whether the other person is unwell or needs medical treatment with a caring attitude, but pay attention to the tone and manner so as not to make the other person feel offended.