Health Library

Cloth dye poisoning

Dyes - cloth

Cloth dyes are chemicals used to color cloth. Cloth dye poisoning occurs when someone swallows large amounts of these substances.

This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call the local emergency number (such as 911), or the local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.

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Poisonous Ingredient

The poisonous ingredient in cloth dye is corrosive alkali.

Today it is rare to find this poisonous ingredient in most household cloth dyes.

Most common household cloth dyes are made from nonpoisonous substances, such as:

• Mild soaps
• Pigments
• Salts

Although these substances are generally considered not dangerous, they can cause problems if swallowed in large amounts, especially in small children.

Where Found

This substance is found in certain dyes used to color clothing or fabric.

Symptoms

Cloth dye poisoning can cause symptoms in many parts of the body.

AIRWAYS AND LUNGS

• Breathing difficulty (from breathing in the dye)
• Throat swelling (may also cause breathing difficulty)

BLOOD

• Severe change in acid level of blood (pH balance), which leads to damage in all of the body organs

EYES, EARS, NOSE, AND THROAT

• Loss of vision
• Severe pain in the throat
• Severe pain or burning in the nose, eyes, ears, lips, or tongue

GASTROINTESTINAL SYSTEM

• Blood in the stool
• Burns and possible holes (perforations) in the esophagus
• Severe abdominal pain
• Vomiting
• Vomiting blood

HEART AND CIRCULATORY SYSTEM

• Collapse
• Low blood pressure that develops rapidly (shock)

SKIN

• Burns
• Holes (necrosis) in the skin or tissues underneath
• Irritation

Home Care

Seek medical help right away. Do not make a person throw up unless told to do so by poison control or a health care provider.

If the chemical was swallowed, immediately give the person water or milk, unless instructed otherwise by a provider. Do not give water or milk if the person is having symptoms (such as vomiting, convulsions, or a decreased level of alertness) that make it hard to swallow.

If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes.

If the person breathed in the poison, immediately move them to fresh air.

Before Calling Emergency

Get the following information:

• Person's age, weight, and condition
• Name of the product (and ingredients and strength, if known)
• Time it was swallowed
• Amount swallowed

Poison Control

The local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States. This national hotline will let you talk to experts in poisoning. They will give you further instructions.

This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.

You can also get online poison help now at Poisonhelp.org. Just enter the product, poison, or medicine to get expert help.

What to Expect at the Emergency Room

The provider will measure and monitor the person's vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated as appropriate.

Tests that may be done include:

• Blood and urine tests
• Bronchoscopy -- camera placed down the throat to see burns in the airways and lungs
• Chest x-ray
• Electrocardiogram (ECG)
• Endoscopy -- camera placed down the throat to check for burns in the esophagus and stomach

Treatment may include:

• Breathing support, including tube through the mouth into the lungs and connected to a breathing machine (ventilator).
• Fluids through a vein (by IV).
• Medicine to treat the effects of the poison and other symptoms.
• Surgery to remove burned skin (debridement).
• Tube through the mouth into the stomach to wash out the stomach (gastric lavage). This is done only when the person gets medical care within 30 to 45 minutes of the poisoning, and a very large amount of the substance has been swallowed.
• Washing of the skin (irrigation), every few hours or for several days.

Outlook (Prognosis)

How well a person does depends on the amount of poison swallowed and how quickly treatment is received. The faster the person gets medical help, the better the chance for recovery.

If the poisoning involved a corrosive alkali, extensive damage may occur to the:

• Esophagus
• Kidneys
• Mouth
• Stomach
• Throat

The outcome depends on the extent of this damage. Poisoning from dye containing an alkali may result in continuing injury to these tissues for weeks or months.

Swallowing such poisons can have severe effects on many parts of the body. Burns in the airway or gastrointestinal tract can lead to tissue death. This may result in infection, shock, and death, even several months after the substance was swallowed. Scar tissue in the affected areas can lead to long-term problems with breathing, swallowing, and digestion.

If the person swallowed a nonpoisonous household dye, recovery is likely.

References

Hoyte C. Caustics. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 143.

Meehan TJ. Care of the poisoned patient. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 135.

Nelson LS, Calello DP. Acute poisoning. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 96.

Theobald JL, Corcoran JN. Poisoning. In: Kliegman RM, St. Geme JW, Blum NJ, et al, eds. Nelson Textbook of Pediatrics. 22nd ed. Philadelphia, PA: Elsevier; 2025:chap 94.

Review Date: 10/14/2025  

Reviewed By: Jesse Borke, MD, CPE, FAAEM, FACEP, Attending Physician at Kaiser Permanente, Orange County, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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