Antihistamine Medication for Itching

• If the sting becomes very itchy, take diphenhydramine (e.g., Benadryl; adult dosage 25-50 mg) by mouth.
  • Do not take diphenhydramine if you have prostate problems.
  • Antihistamines may cause sleepiness. Do not drink, drive, or operate dangerous machinery while taking antihistamines.
  • Read the package instructions thoroughly on all medications that you take.