I think i have a growth, skin cancer or ingrown hair.?

I noticed it last night, i was going to tell my mom about it in the morning but i forgot, shes out of town, for tonight and it has gotten bigger, before it was very small at least 10x smaller. Now its about the size of the tip of my pinkie. It spits out puss when i squeeze it, i think thats because i was popping something inside of it. It was getting smaller but now it is about half the size as it was, maybe it storying in on puss. Anyways its in my arm pit, i do have hair there, so thats why i was thinking it was an ingrown hair.
I have had something like this before except on my face, i got it removed and it came up with no cancer. But now that i have it again im worried.

I believe that you may have a condition called Hidradenitis Supprativa.of re-occurring boils/ cysts/abscesses , that are often misdiagnosed as ingrown hairs, herpes, being unclean or over wieght and folliculitis. This is a newly diagnosed skin condition , but there is a lot of info out there.
Here is a link :
http://en.wikipedia.org/wiki/Hidradeniti...

or the HS_USA page is ..
http://www.hs-usa.org/hidradenitis_suppu...

If this sounds like it might be you, READ it, PRINT it out, and TAKE it to your DOC.
Its better to try to start treatment soon, it can spread over the body if left untreated. These boils can become quite large and painful. Sometimes even lasting for weeks or months , do not attempt to POP them they can then tunnel under your skin and spread all over the body. Most common areas are armpits, groin, binkni line, inner legs, and intimate places and basically anywhere that sweats and rub against clothing. Stress is a big inducer.

There is a support group at MSN

http://groups.msn.com/HidradenitisSuppor...

This is also a link to a PDF of a study in Germany about HS and if it is genetic... I thought it was intresting :

http://www.hs-foundation.org/pdf/2000_Cl...

and a yahoo one, and I am open for questions!
I have had this for 8 years, I was misdiagnosed for a LONG time, It was very embarrassing, painful and scary. I am just trying to help out so you don鈥檛 have to wait as long as I did.

Currently I have 5 , 2 next to each other on my right inner groin. 2 in my upper HAIR area, and 1 med sized on my butt on the panty line, and they do come every week or so. I find that certian foods, not having a regular showering regimen, wearing clothing that irratiates the area.. and STRESS usually are a precusor to getting one.

I also prefer to use NEXCARE bandages.. there are 2 kinds I like for comfort and stay put reasons..
the first is like a clear bandaid.... soft on the edges with a small area of bandage... helps with those buggers when they are on bikni line.. usually stay for me.. or occasionally on my inner thigh for those I like the foamy sponge like ones that are beige in color.. I think they are 3M.

sounds like an ingrown hair. i wouldnt worry about it being cancer. put acne medicine on it and, if it doesnt go down in a week, go ahead and see a doctor just to calm your nerves.

It is probably and ingrown hair or even just a heat pimple!! If you have popped it and it returned - pop it again and this time put some neosporin or alcohol on it to sanitize!! If it gets bigger or redder or refuses to go away then go to a doctor!! If you start to run a fever of any kind go to doctor right away!! There is a deadly staff infection out there that starts out as a pimple that will not go away and quickly gets worse and you start to run a fever! So if it does not get better or if you start to run a fever then seek a doctor right away! What you probably have since it is under yor arm is due to heat and sweat! Once you pop and doctor it this time, try using some powder to absorb moisture for a few days!! Unless you are running a fever you will be fine to wait and show it to your mother tomorrow! Good Luck!!