Washington is the leading producer of mint oil nationwide. Washington farmers produce the most spearmint oil and the second-most peppermint oil, with about 17,000 acres of spearmint and 16,000 acres of peppermint, Christensen said.
These lymph nodes are the structures in the upper neck that often become tender during a common sore throat. In fact, many of these lymph nodes are actually located on, within, and deep in the substance of the parotid gland or near the submandibular glands.f your doctor suspects an obstruction of the major salivary glands, it may be necessary to anesthetize the opening of the salivary ducts in the mouth, and probe and dilate the duct to help an obstructive stone pass. Before these procedures, dental x-rays may show where the calcified stones are located.
1. Know where the lymph nodes are located. You have the highest concentration of lymph nodes in your neck, around your collarbone, in your armpits, and in your groin. 1  Lymph nodes are present in groups, and are about the size of a pea or bean.2  Lymph nodes located in the groin are also called inguinal lymph nodes.. Check the lymph nodes on your neck and collarbone. Use the first 3 fingers of each hand to circle behind your ears, down each side of your neck and under your jaw line. If you feel lumps accompanied by tenderness, you may have swollen lymph nodes.