Large Painful Pimple On Leg. When this oil is produced in plenty it clog pores since it mix with the bacteria and dead skin cells to form pimples. When squeezed they do squirt out puss and after a few days a large clump of puss.

Periodically I will get large pimples on my legs and knees that cause inflamation and great discomfort. Sometimes other substances such as dirt bacteria and excess oil can become trapped within the bump thus causing the affected area to become swollen and red. Depending on the cause a painful lump in the groin may go away on its own or may need to be treated by a medical professional.
Other possible causes include boils infected ingrown hair or infected hair follicle.
Boils on the skin of the leg are usually characterized by the following signs and symptoms that include. The pimples evolve into fluid-filled blisters then ulcers. Most of the time when the close encounter with the said pimple happens it leaves a hole in my skin and a scar after it heals. They usually last about 3-7 days before I pop and disinfect it.