My daughter has a spider bite that's red and has a blister. What should I do?

Generally, treatment for spider bites involves wound care, pain management, and tetanus prophylaxis, if necessary. Most bites heal without scarring without much treatment. Your treatment provider may recommend an antibiotic. Keep the bite clean by washing it with soap and water. Then, apply a cold compress to the bite for 10 minutes every 1-2 hours over a 12-hr period. Don't apply the compress longer than 10 minutes because it might damage the skin. Additionally, elevate the area to help the bite heal and give your daughter an over-the-count pain reliever like ibuprofen if her doctor says it's safe for her to take it.