Have a look on the WET and FORGET website,a bit on the expensive side,I used it to get rid of mildew/mould on my aircraft,works a treat,used on boat sails,doesn't rot the stitching(never use detergents)one other thing to try is dettol,
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets