Keyless entry button on door handle not working

[snapdragon]

Two of mine started getting water behind and would make a squishy sound when pressed. One of them didn't work most of the time. This would also freeze hard under the silicone button when below freezing. One day I used a silicone spray with a straw on and jetted it into the gap while jabbing the button and then wiped off the excess. It started to work again, but recently started getting water behind so will do again.