It has some additional meanings as well if we look at the historical context.

Myrrh was, in Jesus's time, more valuable than gold. It is obtained from trees which grow in southern Arabia and other parts of the African continent. Its ancient use was as an analgesic and an embalming element. Myrrh symbolized pain, death and the afterlife. As a gift of the magi, it foretold of Jesus's suffering and death. Jesus was offered myrrh with wine to soothe him during the crucifixion. Myrrh also was used to anoint his body after his death.

If you look at the other two gifts (Gold, which was fit for a king, and Frankincense, not native to Jerusalem, but important to the Jewish priesthood), it paints a pretty neat picture.

i went to catholic school growing up and they always taught us myrrh was a kind of medicine, similar to aspirine

Either that or ask on /x/, someone is bound to have it. I even know which one you mean but I personaly don´t have it.

maybe mynameisgeorge or epicethan has it