But are they already healed from the sunburn? I recommend a moisturizer based on oats or aloe vera which helps to heal and keeps the skin fresh and to increase the consumption of green tea and fruit and vegetables ( spinach and zucchini , strawberries , peaches , apricots and carrots ). This is advice in principle without me knowing the level of burns in your hands, so consider carefully and if you think you should go to a specialist doctor.