What could this be on my little boy

gg • Married💞 Momma of a little boy & glitter girl. Dog mom! 🐶

So my 16 month old has had this for almost 3 months. It looks like a pimple that needs to be popped. U pop it then it scabs for three weeks then turns into what I believe looks like s black head and does the whole process all over again. It has never gone away. I’m bringing him to the dr today at 7pm but just wanted to get some insight on it. Could it be a cyst or staph? I know it’s common but I’m not sure