I have this huge blackhead on my upper arm. I squeeze it out when I notice it...and a huge thing about a half an inch long comes out of it. A couple of weeks or about a month later...it's back!
Also, the black head doesn't look like a bump...it's completely flat. After I squeeze it out, there is a deep hole left.
if you sgueze it out brush it with a toothbrush with mint tooth paste on it. it worked 4 me when i had a blackhead on my nose.
Need the doc to cut it out. It has a core that is beyond your squeezing reach. It also might be a cyst.