I’m going to take notice of all the comments, you’ve all been very helpful.
Starting today I’m going to bath Ronnie and Reggie once a month. As they are small and short haired (Min Pins) it will be easy. Their bedding is being washed weekly and they will be brushed religiously every day. We now have a hepa filter blower and vacuum and I’ve ordered the dog wipes.
im going to continue with the cetirizine for a couple of weeks and the perhaps alternate with portion.
I will go to the GP as it has been going on for too long now.
thanks all.