Help I’ve shrunk a woollen jumper

Help I’ve shrunk a woollen jumper? I hear you call! Well lets face it we’ve all been there at some point and your first washing accident always feels horrendous. You were either in a hurry, pressed the wrong button, and washed a garment too hot. Or forgot that it was in there when you bundled the jeans and other coloured cotton items in and pressed a setting for colour fast cotton instead of hand wash…