Horn Jammed on and Bulb keeps popping.

Hi all,

I rode home in the rain from work about 2weeks ago in a horrendous downpour. It was a bit hairy.

10 mins from home my headlamp popped and my horn jammed on. I suspect water ingress somewhere (obviously) but not sure if its in the horn switch, the horn or the relays and I have no idea at all on the bulb popping. I've replaced it with a new one and that popped within seconds too.

Any advice would be very welcome

Thanks all!