An analgesic or painkiller is any member of the group of drugs used to achieve relief from pain. Analgesic drugs act in various ways on the peripheral and central nervous systems. They are distinct from anaesthetics, which temporarily affect, and in some instances completely eliminate, sensation.
The most common go to for pain relief would be paracetamol, ibuprofen or aspirin. However there are more natural sources and remedies if you’d rather relieve pain another way.