If the burn is from an electrical source, make sure the source is turned off or the person isn't connected to it anymore before helping. Similarly, try to protect yourself with gloves if the burn is caused by a chemical solution. When examining the blister, look for signs of a second-degree burn, which include very red skin, weeping from the area, blisters, pain, and even loss of skin. Symptoms of more serious third-degree burns include losing skin layers, dry and leathery skin, charred patches, painless areas where the skin is burned, and areas that look brown, black or white. Additionally, note the location of the burn, as well as its size. A large burn is often an emergency situation, so a person with a large burn likely needs medical attention. If the burn is covering more than 3 inches (7.6cm), it's a good idea to call for medical assistance. Similarly, call for help if the person appears to be ill or otherwise affected by the burn. Also, if you're not sure whether it's a second-degree or third-degree burn, it's best to get medical help. It's best to see a medical provider for any burn, even if it's very small. However, you don't necessarily need to call for emergency help. Burns to the mouth and eyes caused by chemicals require medical attention no matter what. The clothing could retain heat against the skin, making the burn worse. Just take the clothing off, if possible. If not, cut that area of clothing off, pulling slowly. Don't try to remove clothing that seems to be stuck to the skin. Instead, cover up the burn with the clothing attached and seek medical attention. Keep in mind that clothing can quickly adhere to the burnt skin, and only a medical professional should try to remove it at that point. Doing it yourself could send the person into shock. If the burn is chemical, you should still remove the clothing, as long as it's not stuck to the skin. However, wait until you've flushed the area for a few minutes before doing so while still rinsing the area. Otherwise, you can drag chemicals across other areas of the body. Burns can cause swelling, making jewelry or even clothing like arm cuffs too tight on your skin. Take it off as quickly as you can to prevent it from getting stuck. For instance, if you have a ring on and you burn your finger, take the ring off. A burn can keep hurting your skin if you let it stay hot. Putting it in water cools down the skin, reducing the damage the burn can do. This step is also important if you have a chemical burn, as you want to wash the chemical off as quickly as possible. You can also use a tub of cool water if you prefer. However, don't use ice, as that can cause further damage. Hold it under the water for 15 to 30 minutes. If the burn is in a place that you can't easily put in water, you can apply a washcloth dipped in cool water instead. Don't submerge large areas of the body to treat a large burn, as that could cause hypothermia. However, you can spray the burn with a showerhead, if one is available. Place the person in the tub with their clothes still on, initially. Then, spray them with cool water from the shower. Loosely cover the burn with the cling wrap, which you don't need to secure since it sticks to itself. This will prevent the loss of fluids while the person waits for treatment. Additionally, the cling wrap won't stick to the person's skin, so it won't cause pain or shock when it's removed. This is the same type of plastic wrap you use in the kitchen. If you don't feel it is an emergency situation, you should still talk to your doctor about the burn. They may recommend you visit urgent care to make sure the blister doesn't need more care than you can provide at home. You can also try a virtual visit, which many medical systems offer now. You visit with a doctor using your smartphone or computer so they can view the blister.

Summary: Assess the cause and severity of the burn. Call emergency services for large or serious burns. Take off any clothing covering the burn unless it's stuck to the skin. Take off any jewelry that may tighten around the area if it swells. Place the burn under cool, running water immediately to cool it down. Wrap the burn in plastic cling wrap while on the way to a doctor. Talk to your doctor if you don't go to the emergency room.

Your new bamboo shark will eat foods such as uncooked shrimp, scallops, mussels, and pieces of fresh marine fish, squid or octopus. Cut any large food into bite-sized pieces. Do not feed your shark common feeder fish such as goldfish or guppies. These freshwater fish are not a natural food for bamboo sharks. If you wish to feed your shark live food, use silversides or sand eels. Bamboo sharks only need to be fed every two or three days. Give the shark a large portion of food a few times a week. If it loses weight, increase feeding. A juvenile shark should grow, but if an adult shark shows signs of weight gain, reduce the amount of food. When you first get your shark, it may be hesitant to eat. Providing live food such as saltwater feeder shrimp and fresh cockle (in the shell) may help entice it to eat. If it takes a few days to start eating, don't be alarmed. These sharks can survive a few weeks without eating. A clean aquarium is important to keep your shark healthy. Clean/replace the filters often, and change the water when necessary. Your protein skimmer will need to be emptied approximately every other day. Follow package instructions for replacement of carbon filters. When water becomes overly soiled (i.e. cloudy), you will need to change it. This will require large containers full of RODI filtered and salted water, and pumps to remove the old water while adding the new. Bamboo sharks can coexist with other fish if you want to make your aquarium more interesting. Be aware, however, that small fish will probably be eaten, and any crustaceans are likely to disappear very quickly. Bamboo sharks have been kept successfully with grunts, snappers, jacks, groupers, and goatfish.
Summary: Feed the shark. Keep the aquarium clean. Introduce other fish if desired.