Owing to the severity of symptoms, and the speed with which they progress, in areas where these spiders are known to live, all bites from large, black spiders should be treated as though they were caused by Australian funnel-web spiders. First-aid treatment for a suspected Australian funnel-web spider bite consists of immediately applying a pressure immobilization bandage; a technique which consists of wrapping the bitten limb with a crepe bandage, as well as applying a splint to limit movement of the limb. This technique was originally developed for snakebites, but has also been shown to be effective at slowing venom movement and preventing systemic envenomation in case of an Australian funnel-web spider bite. Some evidence suggests that periods of prolonged localisation may slowly inactivate the venom.