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6-8 pus cell can be found in urine sample of a normal person also. But you have symptoms so , you wil need an examination by a gynaecolgist to rule out vaginal infection
Scrathing causes dryness and propagates the cycle of itch . Avoid scrathinc, keep nails trimmed, wear cotton panties, wash your self each time after you urinate - (front to back).
If the problem is recurrent please chek blood sugar level. For recurrent infections you can try homeopathy