Try communicating with it. There has to be a reason its bothering her so ask it. Or put protection on her and in the house. If nothing works then try banishing it, but only if absolutely necessary.
Good luck and blessed be!
For me, spirits will bother me until I acknowledge them and help them. I can watch a million pas by like I am not even here, but the only time they talk to me is when they want something. After I help the spirit, I usually dont here from it again. At times, I will see it pass like it is checking up on someone, but it doesn?t stop and talk to me. Maybe the spirit wants something.
Protection is a good idea too.
Say the prayer of protection it is a very powerful yet simple prayer:The light of Goddess surrounds me, the love of Goddess enfolds me, the power of Goddess protects me, the presence of goddess watches over me where ever I am Goddess is and all is well. try that and I know in my heart this will work because I've used it for similar issues before.