Flush cache only for one domain

[ram]

I sometimes have issues where some domains remain unresolvable ( their
NS is down ) for sometime and then my caching bind server just caches
the result even after the problem is solved

Until I restart named, bind gives no DNS records.  ( or until cache
times out ) 


Is there a way I tell bind named for just 1 domain requery the DNS
records and dont resolve from cache 


Thanks
Ram