As a Steelworker you are required to operate sheet-metal tools and to apply basic sheet-metal layout techniques. In many Naval Construction Force (NCF) projects, sheet metal is used to protect the exterior of buildings by using flashing, gutters, and at times, complete sheet-metal roofing systems.
Other essential oils have anti-microbial actions, protect against colds and are highly effective for respiratory support, whose essences can be inhaled to address ear, nose, throat and lung problems. These include: 1  Frankincense (Boswella carteri). 2  Lavender (Lavandula augustifolia). 3  Lemon (Citrus limonom).
Fish oils, particularly in the form of cod liver oil, provide healthy fats to help prevent inflammation of the gum tissue and additional vitamin A (supports tissue in the mouth) and vitamin D (combats inflammation). Cold sores and canker sores are often linked to stress. The immune system can become less effective under chronic stress, making you less resistant to illness and more susceptible to infection. Find ways to manage the bustle of the day and keep your immune system on full alert.