Is it possible to overdose on Lidocaine from using a spray that contains Lidocaine for sunburns? The label says apply 3 - 4 times a day for, but doesn't say what the maximum safe coverage is. All it says is, "Do not use Aloe Vera Burn Relief Spray with Lidocaine Aerosol in large amounts, over large areas, or for longer than recommended. This may increase your risk of serious side effects." So would your torso and back be a too large of a area?