They may be consumed up to the use by date. Unopened deli meats generally keep for two weeks. However, once the package is opened, the use by date is meaningless; the meat should be consumed within 3-5 days. This is because anti-oxidative gases that preserve pre-packaged deli meats escape from the packaging once it is opened. Unopened packaged deli meat can be frozen for one to two months.
Chest soreness that is caused by working out used to be attributed largely to the buildup of lactic acid, which is a waste product created by the muscles when strained.
Chest pain can be caused by many diseases and condition, for example,angina, heart attack, shingles, pneumonia, pulmonary embolism, pericarditis, GERD, broken or bruised ribs, and aortic dissection. The treatment for chest pain depends upon the cause. If you have pain in the chest, see your doctor or other healthcare professional.