Final answer:
The technical term for an allergy to hair tint is Contact dermatitis, a type of hypersensitivity reaction where the immune system responds to substances that touch the skin.
Step-by-step explanation:
The technical name for an allergy to hair tint is Contact dermatitis. This is a type of hypersensitivity reaction that occurs when the immune system reacts to a substance that comes into contact with the skin, in this case, hair dye. Contact dermatitis is different from anaphylaxis, which is a severe, potentially life-threatening allergic reaction that can cause swelling of the tongue and trachea, a dangerous drop in blood pressure, and shock. Although Contact dermatitis can be uncomfortable, it is generally localized to the area of contact and does not lead to the systemic effects seen in anaphylaxis.