to Purrs Stezzle
Lots of points raised there but you sound like a great and very responsible 'new' cat owner
Firstly, hope that Katie is better soon. It's worth asking your vet about pro-biotics as cats can get 'runny bums' just the same as humans when they have antibiotics. I've used Lacto-B - a pet probiotic - with great success in the past, you can get it from any online pet pharmacy relatively inexpensively but as you need it now rather than in a few days it's prob best to get it direct from your vet if he/she stocks it.
With regards cleaning, when my cats have had the odd diarrhoea related accident I've cleaned thoroughly with baby wipes and have never had problems with them going there again as the reason they 'went' there in the first place was purely an accident due to diarrhoea. I have read that cleaning with biological ie
not Non-Bio washing powder solution works as the enzymes destroy the bacteria.
Definitely worth getting Candy checked over at the vets as teeth issues can cause them lots of discomfort and really affect their quality of life.
Licky sounds like he might be very shy but it defo sounds like you have won his trust
When you say Licky is 'pawing you with his claws' do you mean he is sort of paddling with them? This is something cats do when they're very relaxed so a good sign although it can hurt! I clip my cats claws as they both do this loads and if they had super-sharp claws I just couldn't let them do it.