Infected Insect Bite or Sting  

Image of an arm showing a bee sting.

When an insect stings you, it injects venom. When an insect bites you, it does not. Stings and bites may cause a local reaction. Or they may cause a reaction that affects your whole body. Bites and stings may become infected. Signs of infection include redness, warmth, pain, drainage of pus, and swelling. Infections will need treatment with antibiotics and should get better over the next 10 days. But they can sometimes form a pocket of pus (abscess) that needs to be opened by a healthcare provider to release the pus.

Home care

The following will help you care for your bite or sting at home:

  • If a stinger is still in your skin, it will need to be removed. Don't use tweezers that might push more venom into the skin. Gently scrape the stinger from the side with a firm object such as the side of a credit card. This will loosen it and remove it from your skin. Wash the area with soap and water.

  • If itching is a problem, applying ice packs to the sting area will help.

  • Wash the area with soap and water at least 3 times a day. Apply a topical antibiotic cream or ointment.

  • You can use an over-the counter antihistamine unless your healthcare provider has given you a prescription antihistamine. You may use antihistamines to reduce itching if large areas of the skin are involved. Use lower doses during the daytime and higher doses at bedtime since the drug may make you sleepy. Don't use an antihistamine if you have glaucoma or if you are a man with trouble urinating due to an enlarged prostate. Some antihistamines cause less drowsiness and are a good choice for daytime use.

  • If oral antibiotics have been prescribed, be sure to take them as directed until they are all finished.

  • You may use over-the-counter pain medicine to control pain, unless another pain medicine was prescribed. Talk with your healthcare provider before using acetaminophen or ibuprofen if you have chronic liver or kidney disease. Also talk with your doctor if you have ever had a stomach ulcer or digestive bleeding.

Follow-up care

Follow up with your healthcare provider, or as advised if you don't get better over the next 2 days or if your symptoms get worse.

Call 911

Call 911 if any of these occur:

  • Swelling of the face, eyelids, mouth, throat, or tongue

  • Trouble swallowing or breathing

  • Chest tightness

When to seek medical advice

Call your healthcare provider right away if any of these occur:

  • Spreading areas of redness or swelling

  • Fever of 100.4°F (38°C) or higher, or as directed by your healthcare provider

  • Increasing pain, redness, swelling or drainage

  • Headache, fever, chills, muscle or joint aching, or vomiting,

  • New rash

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