Posted previously about kitten from RSPCA being riddled with worms and giardia and kindly infecting ALL my other cats It will not budge. She's had drontal for the worms (which seems to have worked) and multiple courses of Panacur and Metronidazole for the Giardia. It goes away for a couple of weeks and then returns. Kitten is by far the worst. Vet seems to be at a loss other than repeating the meds. Someone please help me!