I am allergic to frangences and I have used shampoo now my head face neck are breaking out and severely itching. I have ache all over my face.

See dermatologist. You will need to find out which ingredient in the shampoo is causing the contact allergy. Try some Hydrocortisone lotion on the affected areas while waiting your visit to the dermatologist. Also use only unscented shampoo and conditioner for the time being.