Would ;you be able to send a photograph?
its right in the center of my back so its difficult for me to even reach it
You should try Burow's compresses on it. This can be obtained at any pharmacy. Put a tablet or packet in a 1/2 quart of luke warm water and compress. Do this twice a day for twenty minutes. If this does not cause the lesion to go down after three days, I would consult with a physician. This may be an epidermal inclusion cyst, sometimes mistakenly called a sebaceous cyst or wen. You definitely do NOT want to squeeze these: if they are infected you may spread the infection.
Happy to answer further questions.