Painful nipple pimple idk what to do 🤮

I recently got this pimple right next to my nipple piercing it was sore but not to painful and ikkkk I shouldn’t have popped it but I did I’ve literally come back to it today and it’s awful it’s so painful it’s like I’m growing another nip

I really need help on what to do I’ve applied salt water but if my piercing infected or idk I really need help

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