Spider Bite On Cat. Spider bites usually do not have a discharge or drainage that you see. The brown recluse, one of many spiders known as brown spiders;
The spider, however, is not aggressive and bites humans only defensively. A bite from a less intense species—say a wolf spider or jumping spider—will likely cause a red bump that may be a little sore or even painful, says gary goldenberg, md, assistant clinical. In some cases, your cat may develop an anaphylactic reaction to a spider bite.
A cat bite abscess would be more likely based on what you are describing.
Signs of a black widow spider bite occur immediately after the bite. If you get bitten by a poisonous spider like a black widow or brown recluse spider, seek immediate medical attention.(1)(2) also, get medical help if you are not sure whether the bite was from a poisonous spider or not. Did you take your cat to the vet and if so what did the vet say? Spider bites usually do not have a discharge or drainage that you see.