When to seek emergency help

Get medical care right away if:

• You were bitten by a dangerous spider, such as a black widow or a brown recluse.
• You're not sure if the bite was from a dangerous spider.
• You have severe pain or stomach cramping.
• You have a wound at the bite site that's getting bigger.
• You're having trouble breathing or swallowing.
• The skin around the bite site is red, purple or brown, and swelling is getting bigger or has streaks spreading from it.