For me, this is a good news / bad news thing. The good news is, I very rarely (long may that last) suffer from writer's block. The bad news: the thing I do find myself suffering from, which could probably be described as editor's block, has no listed remedies.
Symptoms of editor's block (correctus petrificus) include: staring blankly at a draft; spending inordinate amounts of time on social media; writing copious amounts of another first draft(s); baking; doing housework.
It's not pretty. Especially those last two. Partly because editor's block side-effects include the attention span of a fruit fly on crack (I mentioned social media already, yes?).
Solutions range from the 'nuke the ground and salt the earth' options right through to sitting down and trying to adult my way through it (see my post on 'Scene it here?'), and vary in successfulness depending, really, on which way the wind is blowing.
Topical application of ginger beer also helps.