Call Your Doctor Now (night or day) If

• You feel weak or very sick
• Any black widow spider bite
• Abdominal pain, chest tightness or other muscle cramps
• Vomiting
• Urine is brown, black or red in color
• Bite pain is severe
• Bite looks infected (red streaking from the bite area, yellow drainage) (Note: infection doesn't start until at least 24-48 hours after the bite. Any redness in the first 24 hours is due to venom)