Looks like a staph infection already. I used to Was A Grandpa I Was A Firefighter Shirt T-Shirt get them in a similar way. Definitely not good to pop them like that. They just come back worse. Warm compresses antibiotic cream and a drs visit if possible would be best. George Harley Homer it’s not a pimple, it’s a sebaceous cyst and does have a sac, if the sac is fully removed it shouldn’t come back.