Marine Stings and Scrapes

Home treatment can help ease your discomfort and prevent other problems.

Jellyfish and Portuguese man-of-war stings

• Do not rub the tentacles with your hands, a towel, sand, or clothing.
• Soak a compress in household vinegar (5% acetic acid solution) and hot water. Apply to the affected area to prevent further stings.
• If vinegar is not available, rinse the area with large amounts of salt water. Do not use fresh water—this may cause the tentacles to release venom. Do not use urine, gasoline, kerosene, or turpentine.
• Rinse eye stings with a saline solution, such as Artificial Tears. Do not put vinegar, alcohol, or any other "stinger solution" in the eyes. The skin around the eye can be dabbed with a cloth soaked in vinegar, but you must be extremely careful not to get any of the solution in the eye.
• If vinegar is not available, unseasoned meat tenderizer, baking soda, or one-quarter-strength household ammonia may be useful for treating jellyfish stings. Be careful not to get these products in your eyes. Meat tenderizer or baking soda may be sprinkled directly onto the affected area or made into a paste by adding water and then applied to the skin. Apply meat tenderizer to the skin for no longer than 15 minutes. Soak a cloth in ¼ cup (60 mL) ammonia mixed with ¾ cup (180 mL) water and put it on the affected area.
• After decontamination, pick off tentacles with a stick or your hand protected by a towel or glove. Be very careful not to rub or press the tentacles.
• If it is available, apply a lather of shaving cream or soap, or a paste of baking soda, flour, or talc to the skin. The stinging cells will stick to the shaving cream or paste and can then be easily scraped off with a safety razor, a knife edge, or the edge of a credit card.
• Take an Reference antihistamine, such as diphenhydramine or chlorpheniramine, or apply Reference 1% hydrocortisone cream to help control itching. Note: Do not use the cream on children younger than age 2 unless your doctor tells you to. Do not use in the rectal or vaginal area in children younger than age 12 unless your doctor tells you to. Also, don't give antihistamines to your child unless you've checked with the doctor first.
• Use an Reference ice pack to help relieve pain.
• Clean any open sores 3 times per day, apply an antiseptic ointment, such as bacitracin, and cover with a light bandage.

Seabather's eruption

• Do not rub your skin. If larvae are on your skin, rubbing will cause them to sting.
• Remove your swimsuit as soon as possible. Since larvae can become trapped in the fabric of your suit, it is important to remove a contaminated suit to prevent more stings.
• If available, rinse in household vinegar (5% acetic acid solution) or rubbing alcohol (40%–70% isopropyl alcohol).
• Shower with fresh water. Apply soap and vigorously scrub your skin. Do not shower with a contaminated suit on. If larvae are trapped in the fabric of a suit, a freshwater shower will cause the larvae to sting.
• Take an Reference antihistamine, such as diphenhydramine or chlorpheniramine, or apply Reference 1% hydrocortisone cream cream to help control itching. Note: Do not use the cream on children younger than age 2 unless your doctor tells you to. Do not use in the rectal or vaginal area in children younger than age 12 unless your doctor tells you to. Also, don't give antihistamines to your child unless you've checked with the doctor first.
• Use an Reference ice pack to help relieve pain.
• Wash the rash with soap and water daily.

Coral scrapes and cuts

Most minor coral scrapes or cuts can be treated at home.

• Wash the wound for 5 minutes with a soft brush or towel and large amounts of warm water and soap (mild dishwashing soap, such as Ivory, works well). Cleaning the wound as soon as possible may reduce the risk of infection, scarring, and tattooing of the skin from coral material left in the wound. See Reference how to clean a wound.
• After washing, rinse the wound with a large amount of fresh water.
• After rinsing with fresh water, rinse the wound again with a solution of one-half hydrogen peroxide and one-half water.
• After rinsing with a solution of one-half hydrogen peroxide and one-half water, rinse again with fresh water.
• Stop mild bleeding with direct pressure to the wound. See Reference how to stop bleeding Opens New Window Reference Opens New Window.
• Use an antibiotic ointment, such as polymyxin B sulfate (for example, Polysporin) or bacitracin. Put the ointment lightly on the wound. The ointment will keep a bandage from sticking to the wound. Be sure to read the product label about skin sensitivity. If a skin rash or itching under the bandage develops, stop using the ointment. The rash may mean you had an allergic reaction to the ointment. Antibiotic ointments that contain neomycin may have an increased risk of causing an allergic reaction.
• Consider bandaging the wound. You may need to protect your wound from getting dirty or irritated. If available, use a nonstick dressing. Be sure to read the product label for correct use.
  • Clean the wound thoroughly before bandaging it to reduce the risk of infection occurring under the bandage.
  • Apply a clean bandage when it gets wet or soiled to further help prevent infection.
  • If a bandage is stuck to a scab, soak it in warm water to soften the scab and make the bandage easier to remove.
• Watch for Reference symptoms of a skin infection Opens New Window.
• Be patient. Coral scrapes and cuts may take weeks and sometimes even months to heal completely.

Symptoms to watch for during home treatment

Reference Call your doctor if any of the following occur during home treatment:

• The lips, tongue, or throat become swollen, or other Reference severe symptoms develop.
• Reference Symptoms of a skin infection Opens New Window develop.
• A rash develops.
• Symptoms become more severe or frequent.

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