How to heal sores on delicate skin and delicate skin areas?

Many options. Maintain good hygiene , clean sores with peroxide/antibiotic cream/ eat healthy foods-fruits & veggies, take multivitamins / vitamin c, may need antibiotic tablets if it becomes pussy etc if its recurrent get checked for diabetes or immunodeficiency. Go see your primary dr for a thorough evaluation!
Skin Care. This would all depend on what sores or infections or other skin problems you have. Skin is very difficulty to manage online. Skin usually must be looked at. I would hope you have a trusted medical expert you are working with in person to stay healthy.