Symptoms of a brown recluse spider bite include itching of the skin, pain and a blister at the bite site that gradually ulcerates, according to WebMD. In certain cases, the bites do not cause immediate discomfort, so an individual may be unaware he was bitten until additional symptoms develop.
As a brown recluse spider bite progresses, individuals may also experience symptoms such as fever and chills, queasiness, sweating and an overall feeling of malaise, explains MedlinePlus. Rare, but serious symptoms, include coma, seizures and kidney failure. Brown recluse spider bites can be fatal, especially in young children, so it is imperative for individuals who suspect they have been bitten to seek immediate medical attention. Individuals who show signs of improvement within 48 hours have a good chance of full recovery.
While brown recluse spider bites can be deadly, the spiders themselves are not considered aggressive, notes Healthline. Brown recluse spiders are commonly found in outdoor areas such as wood and rock piles and bite if they sense a threat. When the spiders make their way indoors, they typically hide during the daylight hours and venture out during the evening in search of food. Treatments for brown recluse spider bites include ice therapy to minimize swelling and antibiotics to combat infection.