Please let me know if there is an anti-venom for the brown recluse spider?

Brow Recluse: No antivenom-yet. There is treatment. Dapsone(an old leprosy drug) is useful. If the bite is already necrotic then debridement and wound care may be necessary.

Nope: The wound is cleaned and ice packs may be applied. The extremity is elevated. Non-steroidal anti-inflammatory medications may be used. Ulceration may sometimes be treated or prevented with dapsone. A tetanus shot may be necessary. Antibiotics may be necessary if the wound becomes infected. Large ulcerations could require debridement.