Should i take oral systemic antibiotics for ear infection from piercing?

Treat infection: When skin or soft tissue is infected, it should be treated with the most effective agent available.

Depends: The first and best treatment for a piercing infection is to remove the piercing. It's tough to cure an infection like this if you don't. Once the offending piercing is removed, the infection is often easy to cure with good cleaning and antibiotic creams, avoiding treating the whole body. If the infection has spread from the site, an oral antibiotic might be necessary. A doctor can help decide.