
You need to suss out what it is tahts freaking her out. My saluki x does NOT like huge big hefty dogs hurtling up to her, she SCREAMS.
What you DONT do is put her in a situation like busy park, loose dogs straighta way.
Keep her on lead, take her to places wih very very few dogs, and find out what her most favourite treat is, and reward her well for NOT screeching with the nice treat.
So 'loose dog in sight = bucketful of fantastic treats'.
Work on taht, as well as general training to improve her bond and trust in you, and gradually increase the level of 'scary'. IF it gets too scary, go back down a level.
You also need to teach her a method of coping with 'scary', whether thats redirectin gher attention onto a toy, or hiding behind you or whatever.
Em