The symptoms at the time of the bite may not appear to be very severe and may take a while to progress to a more severe state. Treatment is important to minimize the damage done from the bite. If possible, bring the spider to the emergency room for identification. Survival past 48 hours usually indicates that recovery will follow. The ulceration may take up to 6 weeks to heal, with proper care.
Many arthropods are capable of carrying disease.
This illustration shows some of the general characteristics of arthropods. This lesion was produced by the bite of a brown recluse spider. However, the Hobo spider can also produce bites that require medical attention.