Question about a lump.

Ingrown hair maybe? They can cause an abcess.

 

It sounds like an ingrown hair to me aswell.
I haven't had any success myself with them apart from waiting until they sort themselves out, but you could try holding something warm on it (such as a cloth left in hot water) for a few minutes to try and open up the pore.

 

If you're not squeamish and can handle a bit of pain, you can sterilize a razor or straight pen and lance or prick the abcess to drain the pus. The site will heal faster that way and once the swelling is alleviated, so is the majority of the pain. Then you can just put a Bandaid with some Neosporin on the site to prevent infection.

Just be sure to use something really clean and sharp if you do this though.

 

If it is large, red and irrtated, it sounds like a boil. You should see your doctor to determine if it needs to be treated.

 

Maybe... a pic would help? idk. I'm sure it's fine... it doesn't sound like anything serious maybe you should see how it feels in a few days. How long have you had it?

 

It could be something like a spider bite or another bug bite. Does it have any little spots that could be indicative of a bite?

I can't think of anything else that hasn't been mentioned. If it was me personally and it felt soft i would think there is something in it and have ended up either scratching it open or popping it xD Like maverick said if you go that route sterilize a needle or something with rubbing alcohol or peroxide or something and prick it so you can drain it then put some neosporin and a bandaid on it.

 

Sounds much like a carbuncle, but you have to be careful. Even though it is not leaking, carbuncles have pus that is full of poison...

 

It sounds like a boil to me. I get them a lot, and usually you can't see a white head for a while with them. Try putting a hot compress on it a couple of times a day to see if you can get it to pop on its own. Make sure that if it does pop, you keep the area really clean and cover it with a bandaid with some neosporin or triple antibiotic or something to keep it from getting infected. I'd be careful about trying to drain it on your own because you can spread the infection that way. It's best to let it happen itself. If it doesn't go away and you've had it for more than 2 weeks, it might be time to try to find a clinic or something that can give you low cost medical care because it might need to be lanced by a medical professional if its too deep in the skin.

 

Looks like a sebaceous cyst. It's something that a dermatologist can remove for you.

 

Sebaceous cysts can something drain sebum but they also can form a pearl-like hard ball under the skin. As long as it doesn't become infected, there's no urgency in removing it. But it generally does take an in-office minor surgery to excise it.

 

If it's black now it could be infected, or it could be blood built up in it like a pimple that has been there for a while. Do you get pimples a lot? It doesn't really look like a pimple though... I would go to one of the cheap clinics.