Suggest Treatment For Nose Bleed

My sister had gushing nose bleed about a week ago. She went to bed and woke upa about 2. Went to bathroom and woke up again about 4 does not remember getting back in bed. Next day she had knot above her eyes and a bruise going to hair line. Bruise on left shoulder, both knees and cold feet. Doesn't remember anything from 2 to 4,