Untraceable -
This is summarized from the Penn State Hershey Medical Center site, however you should have the burn at least looked at by a physician to determine severity and risk of infection. After all, It's kinda tough to play if you end up losing an arm!
Hope this Helps:
"Minor burns are treated at home, while moderate and critical burns require hospital treatment. The goal of treatment for second-degree burns is to reduce pain and prevent infection. If the burn was caused by fire, and the victim’s clothing is on fire, smother any flames with a blanket or water, if available, or have the victim use the “stop, drop, and roll” method. If the burn has blisters that are not open, first remove any clothing or jewelry from the injured area. Then, hold the burned area under cool running water for around 10 minutes to stop the burning process. You can also use a clean towel or wash cloth moistened with cold water. However, don’t use ice or ice water because they will further damage the tissue. Do not break open the blisters, or there will be a greater risk of infection. If the blisters are open, don’t remove any clothing that might be stuck to the burn, and don’t run water over the burn. This will increase the risk of shock. Whether the blisters are broken or not, you can place a dry, sterile gauze pad over the burn, but do not use any bandages with adhesive. If the burned area is larger, lightly drape a clean sheet over it to protect it until you get medical treatment. It is important for the bandage to be loose so the burn gets air.
Never apply butter, oils, or burn ointments. They make it more difficult for the burn to heal and can actually make the burn worse because the heat can’t escape. Arms or legs that are burned should be kept raised to reduce the amount of swelling. If the face or neck are burned, raise the person’s head slightly. This will also help if he or she is having trouble breathing."
(Reference:
http://www.hmc.psu.edu/healthinfo/b/burns2.htm)