how do i start my 92 honda prelude without using my immobiliser remote?

hi, iv put my remote to my immobilizer for my 92 honda prelude si through the washing machine :( iv taken it apart and cleaned the gunk out of the chip as best as i can, but it hasnt worked. How do i go about starting the car without it and how do i get a new remote? I bought the car second hand, just for the record. Thank you so much for your help :)