If your Tap is dripping at the base of the Spout i.e where it is fixed into the body of the tap, then you either need to replace the O Rings (1239R) or if you have a Pin hole in your Spout or its cracked, damaged etc, you can replace the entire Spout.
DIY : Here is our Guide : How to change your Kitchen Tap Spout.
Please ensure that you select the correct finish. All our Spouts come complete with O Rings and Aerator / Perlator included. If you don’t know which spout you require, Contact us for assistance or email pictures to firstname.lastname@example.org