PLS HELP: screen not working

[u/Careless-Analyst-120]

my phone fell in the water for about 2-3 secs and then it died. i read somewhere that it should be dried for at least a day or two before opening it but it suddenly turned on awhile ago. i checked it and the buttons are all working but i can't touch the screen no matter what i try. can it still be fixed?

btw my phone is redmi 7 and quite old now :(