Anti-Itch Extra-Strength Continuous Spray, 3 oz, QC99650 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Compare to Benadryl Itch Spray. Topical analgesic. Histamine blocking analgesic. Relieves itching and pain associated with insect bites and rashes due to oak and sumac. Sprays at any angle.