Ouch! When you're bitten by an insect, many of us would reach for some cream to rub on the bite and stop the pain.
But a new study's found that most insect bite treatments don't really work, and some hadn't even been tested for helping bites.
Researchers for the Drug and Therapeutics Bulletin say people might be better off using a cold, wet cloth to treat bites instead.
They also said that most bite reactions just get better by themselves.
Researchers did point out that if serious symptoms - such as infections - develop from bites, people should seek medical help.
The National Health Service still suggest that treatments such as creams should be used.