Go see a doctor. Any reputable doctor on this board wouldn't do anything for you with out knowing your history or even seeing you. Didn't mean to sound harsh but this is something I wouldn't do.
You could try to look it up on webmd.
http://www.webmd.com/a-to-z-guides/swollen-lymph-nodes-topic-overview
What causes swollen lymph nodes?
Lymph nodes often swell in one location when a problem such as an injury, infection, or tumor develops in or near the lymph node. Which lymph nodes are swollen can help identify the problem.
The glands on either side of the neck, under the jaw, or behind the ears commonly swell when you have a cold or sore throat. Glands can also swell following an injury, such as a cut or bite, near the gland or when a tumor or infection occurs in the mouth, head, or neck.
Glands in the armpit (axillary lymph nodes) may swell from an injury or infection to the arm or hand. A rare cause of axillary swelling may be breast cancer or lymphoma.
The lymph nodes in the groin (femoral or inguinal lymph nodes) may swell from an injury or infection in the foot, leg, groin, or genitals. In rare cases, testicular cancer, lymphoma, or melanoma may cause a lump in this area.
Glands above the collarbone (supraclavicular lymph nodes) may swell from an infection or tumor in the areas of the lungs, breasts, neck, or abdomen.
Common sites for swollen lymph nodes include the neck, groin, and underarms.
continued...
Treatment for swollen glands focuses on treating the underlying cause. For example, a bacterial infection may be treated with antibiotics, while a viral infection often goes away on its own. If cancer is suspected, a biopsy may be done to confirm the diagnosis.
Any swollen lymph nodes that don't go away or return to normal size over about a month should be checked by your health professional.
How long will lymph nodes remain swollen?
Lymph nodes may remain swollen or firm long after an initial infection is gone. This is especially true in children, whose glands may decrease in size while remaining firm and visible for many weeks.