I was wondering if its okay to get an ear piercing this month even though arbaeen hasn’t taken place yet. There’s a taboo surrounding the fact we shouldn’t get piercings in muharram. Could you please clarify that for me?

If it is consider as a happiness then wait till arbaeen
According to sharia it is not haram but we are in the period of Aza and mourning of Imam Husain as.