you have to force yourself drawing. even if you don't like how it first looks like. keep drawing. you have to draw until it looks fine to you. it'll kill the artblock (maybe gets you frustrated in times) and you make slight progress, even if you don't see it.
I come up with other things I cOULD be doing, such as chores or whatever, and then I'm like "fuck no i dont want to do that" and then I use drawing as procrastination and then you just confuse your mind into making it want to draw.
Well for myself I haven't found a really good cure, but playing video games or listening to music pusches my mood up or looking on fanarts for me ^^ Well everyone is different and have a different cure than to find ^^ If I get a artblock than I study in different animals like this time in horses and deers ^^ and than I desing a char ^^
Its not that I have artblock about Drawing, its more a artblock from my CHARS i draw to often ^^ maby draw someone else's char where you like the desing from it ^^