Hives are typically red raised, blotchy rash that may be different sizes sometimes with a white center. They are typically different sizes and usually are bigger than a dime to several inches in diameter. Hives are almost always itchy and tend to come and go with or without treatment. Hives commonly occur as a reaction to medication or foods or viral induced and occasionally can be related to detergent or soap. Often no cause is found. Hives can come and go for a day or days or sometimes weeks. It will usually improve in about 45 minutes with a dose of Benadryl.
Benadryl to start but can use every 6 hours if needed. (Dosage 12.5 mg -1 teaspoon if child 20 pounds, 1.5 teaspoons if 30-40 pounds, 25 mg or 2 teaspoons if 50-70 pounds and 25-50 mg if 100 pounds or greater). Because Benadryl can make one tired or very occasionally hyperactive, so after the initial dose is effective use a longer acting antihistamine instead for example Claritin.(Dosage 5mg or 1 teaspoon once a day for 20-40 pounds, and 10 mg for >40 lb once a day. Treat for 1 week.
Call office if…
- Rash does not resolve with the Benadryl.
- In on any medication.
- Has in the last hour eaten any nuts or shellfish (e.g. shrimp or lobster).
- The child is wheezing or is persistently vomiting.