Itchy vagina for a week now, used cansten cream but not very helpful, there is no smell or discharge but horrible rash especially at night i am virgin?

Canesten cream: will probably only relieve external sxs if you have a vaginal fungal infection.

See a doctor: If used canestan cream (antifungal) without relief, time to see a doctor for definitive exam, diagnosis and treatment.

Vaginitis: Vaginitis is an inflammation of the vagina that can result in discharge, itching and pain. The cause is usually a change in the normal balance of vaginal bacteria or an infection. A variety of organisms and conditions can cause vaginitis, so treatment targets the specific cause. For more info: http://www.mayoclinic.org/diseases-conditions/vaginitis/diagnosis-treatment/treatment/txc-20258714