Go to the nearest emergency room if you have any of the following:

• Scorpion sting

• Bite from a black, red, or brown widow spider or brown recluse spider

• Severe pain or swelling at the site of bite

• A tick that is embedded in your skin and can't be easily removed at home

• Signs of an allergic reaction such as:

  • Hives

  • Swelling of your eyes, lips, or the inside of your throat

  • Trouble breathing

  • Dizziness or confusion

• If you’re having trouble breathing, you’ll be given oxygen through a mask. In severe cases, you may have a tube inserted in your throat and be placed on a breathing machine (ventilator).

• If you are having a severe allergic reaction from a sting (anaphylaxis), you may be given a shot of epinephrine. If it's known that you are allergic to bee or wasp stings, your healthcare provider may give you a prescription for an autoinjector that you can keep with you at all times in case of a sting.

• You may receive antivenin (a substance that reverses the effects of poison) for some spider bites and scorpion stings. Because antivenin can sometimes cause other problems, your healthcare provider will weigh the risks and benefits of this treatment.

• Steroids such as prednisone are often used to treat allergic reactions. In many cases, an antihistamine to help relieve itching may also be prescribed.

• Try to remove a stinger you can see. Use your fingernail, a knife edge, or credit card to scrape against the skin. Don't squeeze or pull.

• Apply ice or a cold compress to reduce pain and swelling (keep a thin cloth between the cold source and the skin).