What do you mean by you worked on someone? What is a vinegar?
If the person knows then ask them. It is not hard to do that. I would try to learn how to do readings and practice (and learn) divination rather than asking for a reading. It may help to learn especially if you know nothing about readings. It is possible to get a reading but the future can change and sometimes readings can be inaccurate without knowing the person who asked for the reading in person or know the person who you worked on.