Default [Q] Cleaning dirt inbetween my LCD and Touch

Warranty period expired
device - Xperia e dual.

problem - dust/dirt under my screen. Need to clean it. it's affecting my touch and display

can I do it myself? If yes. Can I do it without harming/miscalibrating it?

#noHatPlease

I don't want to visit Service centre. they'll say the whole display has to be replaced. (3000 INR cost)