Cleaning up around the ear will make it look better but its not going to fix the underlying problem which is probably an ear infection. The problem isn't the blood and missing hair under the ear, the problem is the infection in the ear that is causing the blood and drainage from the ear. Yes it will look better if you clean it but it will still be infected.
I hate to say this but if you can't take care of her then it might be best for her if you turn her over to an local SPCA or shelter that can take care of her medical problems and keep her from suffering. You can also contact the Hedgehog Welfare Society and they may have a rescue near you that can take her and get her the medical treatment she so obviously needs.
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