My cat (also called Alfie) suffered really badly from scabs when she was 18 due to suddenly developing an allergic reaction to flea bites - she's now 23. The Vet just said 'what do you expect at her age?'

and didn't offer any solution. Then someone on here suggested giving my cat the contents of a garlic capsule on her food, as once the garlic gets into the cats blood, it emits a smell that fleas don't like. She didn't like the taste of that, so I covered it with a little codliver oil, which she loves. I have been doing this every day since then, it took about six months for the scabs to go, but the scabs covered half her body

She now has lovely thick soft fur and no scabs. Unfortunately she had a very severe reaction to Advantage last year, I thought she was going to die. It took 3/4 weeks for her to recover so she doesn't have any flea treatment now. I too use indorex around the house, but rather sad to keep on finding dead spiders
'Spiders are the good guys
They eat the nasty flies'