Cool the burn with running water or a cold damp cloth. Do not use ice–this may result in more damage to the skin.
Do not use butter, grease, oils, or ointments on the burn.
Cover the burn with sterile gauze or a clean cloth.
Do not use a fluffy cloth such as a towel or blanket.
Take an over-the-counter pain reliever, like acetaminophen (Tylenol)/ Panaram (Paracetamol).
Do not break or pop any blisters. This may result in an infection

If you see signs of infection, get medical attention. Signs of infection include:

Increased pain
Oozing of pus

Once a minor burn is completely cooled you can consider using a fragrance free lotion or moisturizer to prevent drying and make the area more comfortable.