1 Pain that does not diminish with rest, and pain that may be worse at night than during the day. 2  Back pain along with constitutional symptoms, such as loss of appetite, unplanned weight loss, nausea, vomiting, or fever, chills or shakes.
Onions produce the chemical irritant known as syn-propanethial-S-oxide. It stimulates the eyes' lachrymal glands so they release tears. Scientists used to blame the enzyme allinase for the instability of substances in a cut onion.
When the stems have dried and shrunk, cut them off about three inches above the bulb proper. 3. Leave onions for another month or so, until fully dry. 4. Peel off the loosest papery skin and store in mesh bags, suspended from the ceiling in a cool, dark place.