What do I do for a brown recluse spider bite? It happened Friday morning and Saturday I went to the local urgent care...the Dr. I saw yesterday told me to rely on folk remedies. I ve been using an activated charcoal paste to try and draw out all the poison. Lavender essential oil and coconut oil, along with aloe to try and calm myself and a rash. Plus benadryl and Xanax. I itch everywhere. My joints are sore. The bite itself isn t getting worse, it does have a hard knot underneath with a hole/pin sized prick ulcer. The knot does seem to be getting smaller. Just thought I needed to get a second opinion.