I use lavender oil on the skin for scratches and bruises. This oil has excellent antiseptic properties and has wound healing properties. It promotes cell generation and prevents scaring. I also happen to love the smell of this essential oil. I sometimes add a few drops to my bath.
Lavender oil is supposed to be excellent for acne and spots.
I have a book on this oil, which recommends its use for many different ailments. I use eucalyptus oil to clear my sinuses and improve my breathing when I have a cold. It is supposed to have antibacterial and antiviral properties and relieves coughs. A few drops of eucalyptus oil can do wonders in the sauna. Similarly camphor oil is very good at opening nasal passages.