Thanks for staying online, i am posting my answer.
Well, from the description it sounds to be local reaction to spider bite.
Having associated redness, swelling, itching and pain are common after such spider bite.
First of all you should Clean the site of the spider bite well with soap and water.
Then Apply a cool compress over the spider bite location you can use a cloth dampened with cold water or filled with ice.
He should be given anti-allergic medication Zyrtec and OTC motrin for pain.
In United states 2 variety of spider are dangerous, these are-
-Black widow spider
-Brown recluse spider.
Some of the serious symptoms to be checked are-
-chills, fever, muscle cramps, and gastrointestinal symptoms such as nausea, vomiting and severe abdominal pain. Typically, black widow bites are less common. If there is severe discoloration around the bite that looks like a halo or bullseye, then it should be immediately checked in ER.
You can use above measures, and wait till next 24 hours.
In case symptoms doesn’t start to improve, then please take him to ER.
Hope this helped
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