Artist's block, like the common cold, has no cure.

honestly, the best way to remedy artist's block is to just ignore it. it's like being afraid to do something; the only way you're going to get over it is to just do it.

grab a sketch book, a notepad, whatever it is you use to create with and just get to it. if you're out of ideas, just do some random creative exercises or technical exercies so that your skills aren't going to waste. still life requires no creativity aside from the actual arrangement, the rest can be purely technical work. you can practice different shading techniques, colour blending, negative spaces; there's lots you can do while you're waiting for something to spark again.

never just sit there for months and not do anything though. that's what'll feed your block more than anything else.

Jam it back in, in the dark.