How to treat a cold burn?

Written by Wang Xiang Li
Emergency Medicine
Updated on April 13, 2025
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Low-temperature burns generally refer to chronic burns caused by prolonged contact with low-heat objects, such as hot water bottles, heaters, metal hand warmers, etc. These low-temperature heating devices, when in close contact for a long time, can easily cause skin burns, especially in the elderly and infants, who are more prone to local skin damage. Therefore, once a low-temperature burn occurs, it is important to cool the affected area promptly, including soaking and rinsing with cold water to achieve cooling and pain relief effects. Afterwards, the wound can be disinfected with iodophor and treated with burn medication. Mild low-temperature burns will gradually heal. Additionally, if significant skin damage has occurred, it may be necessary to consider using medications in combination, such as erythromycin ointment, all of which can help promote recovery of the affected area.

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Written by Wang Xiang Li
Emergency Medicine
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What to do if the pain persists after a burn?

After a burn, the pain persists primarily because the wound was not properly treated. The most common and simplest method in the early stages of a burn is to soak the burn in cold water or rinse it under running water for over half an hour. This can help wash away the residual heat on the surface, especially making it more effective for acid or alkali burns. Alternatively, you can use an ice pack to cool the area. After cooling, apply some burn ointment. If the pain is severe, pain-relieving medication can be used to treat symptoms, such as ibuprofen. If the pain is unbearable, it is advised that the patient should go to the hospital for timely examination and symptomatic treatment.

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Written by Li Xiao Lin
Emergency Department
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How long will it take for the swelling to go down after a burn?

This question is answered by the Deputy Chief Physician Li Xiaolin from the Emergency Department at Ganzhou People's Hospital, contracted through PureHealth. How long does it take for swelling to subside after a burn? The duration depends on individual constitution and the measures taken after the burn. It also greatly relates to usual diet and other factors. If the burn is mild and not very obvious, it can be resolved relatively quickly with standard treatment. However, if the burn is severe and covers a large area, and if swelling is also significant, the swelling is relatively difficult to reduce and will take a longer time to subside. Inappropriate treatment can lead to worsening of the condition and further complications. Therefore, immediate measures should be taken when a burn occurs: - Rinse with cold water for at least half an hour or until the pain subsides mainly. - Thoroughly disinfect with iodine to alleviate symptoms and slow the progression of the condition. Additionally, be cautious with your diet by avoiding spicy and stimulating foods, seafood, and inflammatory foods. For free expert consultation, please search PureHealth.

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Written by Wang Xiang Li
Emergency Medicine
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How to relieve pain after a burn or scald

Cold therapy is the best way to alleviate pain after a burn. Firstly, you should use running tap water or cold water to soak the affected area for more than half an hour. This can prevent heat from continuing to affect the wound and can dull the peripheral nerves in the area, reducing pain, exudation, and swelling. Secondly, you can apply some dilute saltwater to the wound to relieve pain and reduce inflammation, and then apply burn ointment to the burned area. In severe cases, oral pain relievers such as ibuprofen can be taken, and if necessary, pain medication can be administered via muscle injection. If the burned area is large, it is necessary to go to the hospital for formal treatment in a timely manner.

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Written by Li Xiao Lin
Emergency Department
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What should I do if my finger gets burned and starts oozing pus?

Finger burns have developed a pus discharge, indicating a severe infection at the burn site. Once an infection occurs, in addition to disinfection, oral antibiotics should be administered for anti-infection treatment. Disinfection may need to be carried out once or twice daily. The disinfection process involves washing with saline solution, then further sterilization and disinfection with hydrogen peroxide. After rinsing with saline, re-disinfect with iodophor, and then cover with gauze and dressing. Gentamicin can be applied on top of the gauze to promote healing and improvement of the infection. If oral medications are ineffective, intravenous antibiotic infusion may be necessary for anti-infection treatment. (Medication use should be supervised by a professional doctor.)

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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.)