What type of anti biotics should I use with a infected tatoo my mom has some I cant afford to go to the hospital any help is appreciated?

Update: the reason I know its infected because its been 3 days and is still leaking the scab is raised up big time and there is a red spot around it that has been getting bigger this isn't my first tatoo so I know something is wrong.
Update 2: I know you may wonder if I can get a tatoo why cant I afford to go to the hospital. I did yard work for it.
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