Recently my whole family came down with the “winter crud”. I literally could not breath laying on my back. I had to sleep sitting up. Quite by accident I discovered that for myself lemon essential oil helped me immediately. I usually put essential oils in my bath. This time I grabbed the lemon oil and the dropper cap had been taken out. I accidentally poured the whole bottle in the tub. It stung a little. When I breathed the fumes they stung my nasal and sinus cavities. It stung my chest and bronchi. I was worried. However, that night and for 3 days now I have had no congestion. It must be the sunny yellow lemon we need this winter.