The term âdementiaâ is used to describe a set of symptoms that can include memory loss, difficulty thinking, problem solving, or issues with language. Dementia is caused by damage to the brain cells, and because Alzheimer's is a disease that destroys the brain, it is one of the most common causes of dementia.
Most spider bites cause minor swelling, inflammation, and itching. However, bites from poisonous spiders can cause more severe reactions. Black widow bites affect the nervous system. The bite from a black widow may go unnoticed or may feel like a pinprick.
Below are the most common symptoms of these spider bites: Pain in the bite area. Red and swollen skin around the bit within a few hours. Rings or round bullâs-eyes on the skin around the bite. Pus filled blisters can sometimes develop.