I have papillon/bichon frise mix she is 1 1/2 yrs old and she is shedding what should i do?

You need to brush her daily. You should also shampoo and dry her with a towel. Adding virgin olive oil to her food, might also help. But, you can expect shedding during the spring from almost all dogs. If none of these things work by the time summer roles around, try changing her dog food to something of higher quality.