Burn gel belongs in the bin all you need is liquid any liquid not harmful ones and the like that isI have two first aid kits one is for "BooHoos", plasters, painkillers etc. The second is for the "OH S***!!!" and has a compression bandage (FFD), Eyewash pods, Burn Gel and Cling film. On Scout Camp EpiPens are put in this one.
Burns need cooling all gels, creams do is just carry on the cooking.