I am suffering from varicose veins in thigh area, veins  are itching to much at night ,not able to sleep due to this.

does anyone know any home remedies to cure itching.

I am applying oil on affected area

but no effect.

I dont think so. Try applying coconut oil. Else better check with dr for a lotion

coconut oil with camphor ( kapoor ) helped me .   try resisting itching as you will get rashes.
if its too much consult your gynaec
take care