LET gel, a combination of 4% lidocaine, 0.1% (1:1000) epinephrine, and 0.5% tetracaine in a methylcellulose gel, is commonly used as a topical anesthetic for the repair of skin lacerations, especially in children. It often eliminates the need for injected local anesthetic, but also alleviates the discomfort associated with lidocaine injection when it is required.Read more