This medicine (Pain Relief) uses mild to reduce pain (from headaches, menstrual periods, toothaches, backaches, osteoarthritis, or cold/flu aches and pains) and decrease fever.

Morphine and morphine-like drugs are the most effective painkillers there are. Depending on your cases, these kinds of painkillers may prescribe a patch, injection, or sometimes in a pump. So, You control yourself.