Do you need to disinfect every day after a burn?

Written by Li Xiao Lin

Emergency Department

Updated on March 29, 2025

00:00

00:00

Whether daily disinfection is necessary after a burn depends on the condition of the burn. If it is a minor burn with only superficial reddening, it is not necessary to disinfect daily after the initial treatment on the first day. If the burn is more severe and blisters have formed, it is recommended to disinfect daily, apply burn ointment, and cover with a dressing to prevent infection. Additionally, it is advised to drink plenty of water, eat fresh vegetables and fruits, consume high-protein and nutritious foods to promote healing of the burn, and avoid spicy and irritating foods.

Other Voices

home-news-image

Written by Li Xiao Lin

Emergency Department

1min 7sec

home-news-image

How to treat scalds from boiling water?

After being scalded by boiling water, immediately rinse the scalded area with running cold water for at least half an hour, or until the pain eases, then assess the condition of the burn. If the scalded area is only red and experiencing severe pain, applying toothpaste, aloe, or tung oil topically can have a cooling and pain-relieving effect. Pain relief medications, such as oral painkillers or celecoxib, can also be used to alleviate the symptoms. If blisters appear on the scalded area or if the skin starts peeling, immediately go to the hospital for further treatment. Disinfect the wound thoroughly with iodine to prevent infection, then apply burn ointment to the surface to promote healing of the scalded tissue. If there are large blisters, use a sterile syringe to aspirate the fluid, or make a small cut at the base of the blister to drain the fluid, which can facilitate recovery. Apply erythromycin ointment to the surface to prevent infection. (Medication should be used under the guidance of a physician.)

home-news-image

Written by Wang Xiang Li

Emergency Medicine

52sec

home-news-image

Should blisters from burns be punctured?

Whether to prick a blister caused by a burn depends on the size of the blister. For smaller, dense blisters, it's generally not necessary to break them, as the fluid can be absorbed naturally. However, it's important to keep the wound clean to avoid secondary injury, and topical burn ointment can be applied. For larger blisters caused by burns, or those with high tension that interfere with daily activities or life, and are difficult to absorb, you can sterilize the area and then use a sterile needle to puncture the base of the blister to drain the fluid. Be sure to thoroughly clean out the fluid inside the blister. However, the blister skin should be kept intact to cover the skin, providing protection, reducing the risk of infection, and promoting recovery.

home-news-image

Written by Chen Xiao Jun

Emergency Department

39sec

home-news-image

Is it useful to apply toothpaste on a burnt finger?

Applying toothpaste to a burn on the finger does not effectively alleviate the condition, nor does it effectively reduce damage to the skin, soft tissues, and muscles. Instead, it is advisable to promptly rinse the burned finger with ice water or cool water repeatedly for about 20 to 30 minutes. If there are ice cubes available at home, they can be used to apply ice packs to the burned area. This can quickly and effectively lower the local skin temperature, reduce the absorption of heat, and minimize damage to the human skin, muscles, and soft tissues. If the condition worsens, it is more appropriate to timely seek medical treatment at a hospital.

home-news-image

Written by Wang Xiang Li

Emergency Medicine

1min 1sec

home-news-image

How to treat a cold burn?

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.

home-news-image

Written by Li Xiao Lin

Emergency Department

49sec

home-news-image

Why does a burn from oil swell?

Being scalded by oil belongs to high-temperature burns, which can cause degeneration and necrosis of skin and tissues, followed by an inflammatory reaction leading to the leakage of fluids and localized swelling. Additionally, in a high-temperature state, local blood vessels will dilate. This dilation can lead to congestion, and the increased pressure causes water to seep into the tissues, thus causing localized swelling. Therefore, after being scalded by oil, it is necessary to rinse with cold water for at least 30 minutes, or until the pain eases, to lower the local temperature, reduce pain and swelling, and alleviate symptoms. Furthermore, when necessary, disinfection and protection measures should be taken, and cold compresses can be applied to reduce swelling.