Well it seriously sounds like she needs to see a doctor...
One questions when you say bumps around her vagina..Do you mean on the skin..Or on the inside ?...Because if its on the skin..And she shaves...It could just be razor burn ...
Now if its on the inside ...It might be something a little worse..Maybe an infection or std..
As for the discharge ...Usually when discharge is yellowish or greenish in color that means some sort of infection ..So I would really consider her going to see a doctor asap ..Because the more time she waits the worse it could get..