Tom go and remove the kick panel cover on the driver's side,once you remove that cover there will be three relays exposed to your eyes.
The relay that is more likely to be causing your fuse to blow up is the one in the middle.
All three relays are the same,if you want you can swap the middle one for either the one on the top or the bottom and drive for a while to see if the fuse blows up again. If not then you know the relay have to be replaced.