
Dogs can dog through a second fear imprint period, it's more common in males. My Buster went through this, it was a nightmare at the time, but it quickly past with the right handling by me (I had inadvertantly started to molly-coddle him, then I realised I was making him worse). I wrote a blog on it as it really worried me, Buster new fear was of our own living room
Here's a bit on the second fear imprint period (you need to scroll down as it covers all stages of development from 3weeks)
Encouragement (rewards/praise) can be given for any advancement in behaviour ie. steps in the right direction. I've also learnt while Buster was going through this that distration and subsequent rewards for doing the 'distracting' behaviour worked well, eg. Buster decided it was frightening to come back in from a walk, so I would 'distract' him with a 'wait' command, (he knows this to mean 'wait, listen for next commnad, follow next command then get a treat'!), he would then be ready to listen to me, I would take out a treat, tell him 'gentle' and he would walk towards me to take the treat. That took a lot of reps, but it got him past the fear of comng back in through the door (it had taken me over 20 mins before using that technique to get him back in

).