Burns can be minor medical problems or life-threatening emergencies. Some of the most severe burns are caused by electricity or chemicals. Scalding liquids are the most common cause of burns in children.
Sunburns and small scalds can usually be treated at home, but deep or widespread burns need immediate medical attention. People with severe burns often require treatment at specialized burn units. Skin grafts may be necessary to cover large wounds.
For most burns, the very first thing to do is to flood the injury with cool tap water. Ice is not recommended because it can cause additional damage to the burned tissue.
Burns don't affect the skin uniformly, so a single injury can reach varying depths. Distinguishing a minor burn from a more serious burn involves determining the degree of damage to the tissues of the body. The following are four classifications of burns:
- First-degree burn. This minor burn affects only the outer layer of the skin (epidermis). It causes redness and pain and usually resolves with first-aid measures within several days to a week. Sunburn is a classic example.
- Second-degree burn. These burns affect both the epidermis and the second layer of skin (dermis), causing redness, pain and swelling. A second-degree burn often looks wet or moist. Blisters may develop and pain can be severe. Deep second-degree burns can cause scarring.
- Third-degree burn. Burns that reach into the fat layer beneath the dermis are called third-degree burns. The skin may appear stiff, waxy white, leathery or tan. Third-degree burns can destroy nerves, causing numbness.
- Fourth-degree burn. The most severe form of burn affects structures well beyond the skin, such as muscle and bones. The skin may appear blackened or charred. If nerve damage is substantial, you may feel no pain at all.
When to see a doctor
While minor burns can be cared for at home, call your doctor if you experience:- Increased pain, swelling, redness or discharge in the burned area
- A burn that doesn't heal in several weeks
- New, unexplained symptoms
- Burns that cover the hands, feet, face, groin, buttocks or a major joint
- Chemical or electrical burns
- Third- or fourth-degree burns
- Difficulty breathing or burns to the airway.
CAUSES
Many substances can cause burns, including:
- Fire
- Hot liquid or steam
- Hot metal, glass or other objects
- Electrical currents
- Radiation from X-rays or radiation therapy to treat cancer
- Sunlight or ultraviolet light from a sunlamp or tanning bed
- Chemicals such as strong acids, lye, paint thinner or gasoline
COMPLICATIONS
Deep or widespread burns can lead to many complications,
including:
Infection; Burns can leave skin vulnerable to bacterial
infection and increase your risk of sepsis, a life-
threatening infection that travels through your
bloodstream and affects your whole body. Sepsis is a
rapidly progressing, life-threatening condition that can
cause shock and organ failure.
Low blood volume (hypovolemia); Burns can damage
blood vessels and cause fluid loss. This may result in low
blood volume (hypovolemia). Severe blood and fluid loss
prevents the heart from pumping enough blood to the
body.
Dangerously low body temperature (hypothermia); The
skin helps control the body's temperature, so when a
large portion of the skin is injured, you lose body heat.
This increases your risk of hypothermia — when the body
loses heat faster than it can produce heat, causing a
dangerously low body temperature.
Breathing (respiratory) problems; Breathing hot air or
smoke can burn airways and cause breathing difficulties.
Smoke inhalation damages the lungs and can cause
respiratory failure.
Scarring; Burns can cause scars and keloids — ridged
areas caused by an overgrowth of scar tissue.
Bone and joint problems; Deep burns can limit
movement of the bones and joints. Scar tissue can form
and cause contractures, when skin, muscles or tendons
shorten and tighten, permanently pulling joints out of
position.
TREATMENT AND DRUGS
You can treat first-degree burns and small second-degree
burns at home using over-the-counter products or aloe.
Minor burns usually resolve within a few weeks.
Seek emergency treatment for burns that are moderate,
severe, or widespread — or if the burns involve your hands,
feet, groin or face.
Medications
Depending on the severity of your burn, you may require:
Intravenous (IV) fluids; Doctors deliver fluids
continuously through a vein (intravenously) to prevent
dehydration and organ failure.
Pain relievers; Healing burns can be incredibly painful. In
many cases, morphine is required — particularly during
dressing changes. Anti-anxiety medications may also be
helpful.
Burn creams; A variety of products can be applied to the
burn to help keep it moist, reduce pain, prevent infection
and speed healing.
Antibiotics; If you develop an infection, you may need
intravenous antibiotics.
Tetanus shot ;Your doctor might recommend a tetanus
shot after a burn injury.
Physical therapy;
If the burned area is large, especially if it covers any joints,
you may need physical therapy exercises designed to
stretch the skin so the joints can remain flexible. Other
types of exercises can improve muscle strength and
coordination.
Surgical and other procedures;
In some cases, you may need one or more of the following
procedures:
Breathing assistance; If you've been burned on the face
or neck, your throat may swell shut. If that appears
likely, your doctor may insert a tube down your windpipe
(trachea) to keep oxygen supplied to your lungs.
Tube feeding; Your metabolism goes into overdrive when
your body starts trying to heal your burns. To provide
adequate nutrition for this task, a feeding tube may be
threaded through your nose to your stomach.
Decompression; If a burn scab (eschar) goes completely
around a limb, it can tighten and cut off the blood
circulation. An eschar that goes completely around the
chest can make it difficult to breathe. Cutting the eschar
in several places can relieve this pressure.
Skin grafts; Sections of your own healthy skin are
needed to replace the scar tissue caused by deep burns.
Donor skin from cadavers or pigs can be used as a
temporary solution.
Reconstruction; Plastic surgeons can improve the
appearance of burn scars and increase the flexibility of
joints affected by scarring.
LIFESTYLE AND HOME REMEDIES
To treat first-degree burns and small second-degree burns,
follow these steps:
Cool the burn; Run cool tap water over the burn or put
the burned areas in room-temperature water for 15 to 30
minutes. Don't use ice or ice water. Putting ice directly
on a burn can cause further damage to the wound.
Clean the wound; Use mild soap and tap water to wash
the injury. Gently remove any loose bits of debris in the
wound. If blisters are intact, don't break them.
Apply a lotion or moisturizer; Try anesthetic cream or
aloe gel to soothe the area and prevent dryness.
Cover the burn; Wrap a sterile gauze bandage loosely to
avoid putting too much pressure on the burn.
Take pain relievers; Over-the-counter pain relievers
include ibuprofen (Advil, Motrin IB, others), naproxen
(Aleve) and acetaminophen (Tylenol, others).
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