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.
You can use any of the following essential oils by themselves or in a combination in a diffuser to help with headaches or congestion: eucalyptus, ravensara, thyme, rosemary, peppermint, frankincense, or manuka. For more intense therapy, steam inhalation may both help you to decongest and help you fight an infection.
Tea tree essential oil (Melaleuca alternifolia) is one of the most effective anti-viral oils, which makes it one of the best cold and flu remedies in aromatherapy. A warm bath with tea tree oil, taken when the first symptoms appear, can sometimes ward off the cold or at least reduce its length.