Facewash is necessity because skin becomes dull and tan due to pollution. Facewash could clean your skin and make you to fill fresh. Facewash must be used according to your skin type.
If your skin is oily, you can go for oil clear facewash or medicated facewash containing salicylic acids like nivea oil clear facewash, garnier oil free facewash.
If you have dry skin, you cannot use oil clear facewash because it may make your skin more dry. You should Always use soft and light facewash like moiz lotion. After washing facewash please use moisturiser on your face.
Do not use facewash if you have allergy from any facewash.