Hey Hema . coffee doesn't suit all skin types an i'm saying this out of experience as it doesn't suit me too. for exfoliation you can use sugar mixed with aloe vera gel or a mild facewash.

I tried coffee and sugar scrub once but it doesn't suit my skin, I got red marks on my face then I started using ThriveCo exfoliating facewash which helps to smoothen the skin and make it radiant.

DIYs are good but you need to choose a face wash that exfoliates your skin beside cleaning. I use Thriveco exfoliating face wash to exfoliate it twice a week.

Hey hema. This is a good combination but we advice only a pinch of these materials. Also if your skin has a different texture then it could Cause a reaction. Also the burning sensation is due to the damage skin is removed and fresh skin is coming up.

Go for Thrive co exfoliating face wash, it deeply exfoliates the skin and keeps skin hydrated. It prevents fine line and wrinkles. Also smoothens the skin and add glow. Once in a week or 10days is enough. No skin irritation no burning.