What should I do about the dead skin from a burn on my finger?

Written by Chen Xiao Jun
Emergency Department
Updated on September 26, 2024
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Generally, after a finger is scalded, damage occurs to the skin's soft tissues, and some of the skin may necrotize. Once necrosis sets in, the blood supply to the affected area becomes poor. At this point, it is necessary for the body to promptly remove this dead skin. It is best to have debridement under the guidance of a physician to remove the necrotic skin and soft tissue; otherwise, these necrotic tissues can easily become infected, which in turn can cause harm to the body. Therefore, after necrosis occurs following a finger scald, it is advisable to immediately visit the emergency department of a hospital for debridement. Removing the necrotic tissue and performing proper dressing and disinfection will promote the rapid recovery and healing of the skin tissues.

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Written by Li Xiao Lin
Emergency Department
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How long will it take for a burn on the finger to ease the pain?

After a finger scald, how long it takes for the pain to alleviate depends on the severity of the burn, and the specific time cannot be confirmed. Generally, the pain caused by burns is mainly due to damage to the epidermis, which affects the peripheral nerves, leading to neuropathic pain. At the start of the burn, you can rinse with cold water for half an hour to appropriately alleviate the pain. However, this pain relief is only temporary, so you may need to take some medications to alleviate it, such as pain relievers or celecoxib, which might be effective. If the injury is deeper, affecting below the dermal layer and damaging the nerves, then there will be no pain, and there is no need to address the pain. (The use of medications should be under the guidance of a professional doctor.)

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Written by Wang Xiang Li
Emergency Medicine
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Will burns from oil heal by themselves?

Whether a burn from oil will heal on its own depends on the severity of the burn. If the skin is only red on the surface after being scalded by oil, it indicates a first-degree burn. Such burns do not require special treatment and generally subside on their own. However, it is important to protect the wound area and avoid friction. If blisters form, dressing is required, as undressed, the blister skin may rupture, which could lead to an easily infected wound. Additionally, if the burn is deeper, with localized waxen or charred skin appearing after the burn, it indicates a severe burn. In such cases, it is necessary to seek hospital treatment, where skin grafting may be needed.

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Written by Wang Xiang Li
Emergency Medicine
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How to treat oil burns?

After being scalded by oil, it is necessary to quickly rinse the affected area with plenty of cold water or running tap water to alleviate pain, and then thoroughly disinfect it with iodophor. If blisters form after a scald, for smaller blisters, applying a moist burn cream can promote the healing of the wound. Small blisters generally can be absorbed on their own. If there are large blisters, you should first use a sterile syringe to aspirate the fluid inside the blister, while preserving the blister skin. At the same time, applying burn moistening cream to the surface can prevent infection. If the epidermis is broken, it is necessary to go to a formal hospital for treatment promptly. After a scald, it is important to eat lightly, consume more vegetables and fruits, and eat high-protein, nutritious foods to promote the healing of the wound. Do not eat spicy and irritating foods, drink plenty of water, avoid getting the wound wet to prevent infection, and change dressings according to the doctor's instructions.

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Dermatology
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How long does it take for a deep second-degree burn to heal?

Second-degree burns generally require three to four weeks to heal. The healing time for burn wounds depends on the depth of the burn. Second-degree burns include both superficial partial-thickness and deep partial-thickness burns. Superficial partial-thickness burns involve blistering of the upper dermis. The blisters are relatively full, and the base of the wound is red and moist with substantial exudation. There is significant swelling and severe pain. Under non-infected conditions, superficial partial-thickness burns generally heal within two weeks without scarring. Deep partial-thickness burns affect the deeper layer of the dermis. Blistering in this case tends to be relatively flat, and the base of the wound appears red and white, sometimes showing a net-like pattern of vessel thrombosis. These wounds have less elasticity and the pain is less intense. Deep partial-thickness burns generally take three to four weeks to heal and leave scars. Therefore, formal anti-scarring treatment is required after healing of a deep partial-thickness burn.

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Do you need to bandage after a burn?

Whether bandaging is needed depends on the severity of the burn. Generally, if it's just simple redness, no bandaging is needed. After the local skin is scalded, if blisters form, it is considered a superficial second-degree burn. You can first rinse with cold water or soak in cold water for more than half an hour, or apply ice to reduce the pain. Before bandaging, clean the wound with hydrogen peroxide, then disinfect the wound surface with iodine, release the water inside the blister while keeping the blister skin, then apply burn ointment on the gauze, cover the wound surface, and then use multiple layers of dry gauze for bandaging. Generally, change the dressing every three days, and recovery can occur within two weeks, leaving no scars later. Patients should maintain a light diet, eat fresh vegetables and fruits, avoid spicy and stimulating food, and abstain from alcohol.