I accidentally hung out with a spider for a few hours today and I realized... Spiderbite references!
In the US there are two truly dangerous types of spider bites.
The brown recluse doesn't often cause major issues for most people. Common signs of a brown recluse bite is just inflammation.
But for about 10% of people the area will sink down as the venom destroys the network of capillaries around the bite area. The skin in that area will also start dying. The bite might also develop a bull's-eye mark that has a blue center surrounded by a ring of white, then a ring of red.
Some people will experience nausea, vomiting, a rash over their body, fevers, chills, and joint stiffness anywhere from 24-72 hours after the bite occurs.
Treatment would involve putting ice on the bite and then seeking medical help for antibiotics.
However if the person's urine turns orange or cola colored, medical help is immediately advised as this is the venom destroying red blood cells.
Then there's the good old classic, Black Widows. These are characterized by a black body and a red hourglass like shape. They are more common in western and southern states.
(There's also a Northern Black Widow, but it has a row of red spots down the middle of its abdomen.)
Most of the time, people complain of flu-like symptoms from the bite. However sometimes there is severe pain involved; severe enough that people believe they have appendicitis or are experiencing a heart attack.
The pain is intense muscle cramping and pain that radiates from the bite up the limb of the bite site. There's sweating, either on the whole body or part of a limb.
Furrher symptoms include light sensitivity, headache, anxiety, nausea, vomiting, heavy salivation including drooling, dizziness, difficulty breathing, stiffness, tremors, severe weakness, a rash, and even swollen eyelids.
A cool compress or ice is recommended at this point as well as medical attention. For the most part, this involves pain relievers and muscle relaxers and then little to no chance of a hospital stay. However instead of antibiotics, an antivenom may be used for more severe cases. Antivenom isn't used as much due to the high side effect rate.
You see where I'm going with this.
Antivenom treatments for a black widow bite can require monitoring for nearly 8-12 days by a doctor.
Allergic reactions, muscle cramps, and potential Serum Sickness.
Serum Sickness is kind of like an allergic reaction. The body sees the antivenom and believes a protein in it is a foreign entity attack on the body.
Serum sickness can develop 7-21 days after a medicine is taken. Some people can also develop symptoms in as little as 1-3 days.
Symptoms include: fever, rash, a general ill-feeling, hives, itching, joint pain, a rash, and swollen lymph nodes.
Treatment for serum sickness just involves stopping the medication causing it and treating the symptoms.