a question for you people with dolls

I know several of my friends on here are literate in the world of dolls. While cleaning my room I was looking at Felicity and thinking about how sad she looks. What should I be doing to help her look less.. haggard. I got Felicity on my 9th birthday and we were pretty much inseparable for several years. My best friend Caitlin had Kirstin and we had hours and hours and hours of immaginative play out of them. My mom often said they were an expensive up front investment but worth every penny for the amount we got out of them. But Felicity's hair has...suffered? I don't remember abusing it particularly but it's super kinky and yucky on the end and the back of her head is pretty much bald from my bad ripping attempts to brush it. When I worked at AG they said to wet the hair before brushing with a wig brush..but any one here know any ways to help her poor hair?