When To Worry About A Spider Bite. Antibiotics may be necessary if the wound becomes infected. Answered on jun 28 2015.
When to worry about spider bite symptoms if a local reaction continues to get worse for more than 24 hours it may be time to seek medical attention. You should worry if you are allergic or you have a compromised immune system. Typical reactions to a true spider bite include swelling redness pain and itching though some might hardly be noticeable.
See a physician for systemic reactions.
If you notice that the area around your bite is continuing to swell after a few days or even that the swelling is extending to other parts of the body then it s vital that you seek medical attention to identify the type of bite and receive treatment accordingly. You may also have fever chills and body aches. Brown recluse spider bites. Most spider bites are misidentified.