South Carolina Barber Practice Exam 2025 - Free Barber Practice Questions and Study Guide

Itching or rash is a common symptom of an allergic reaction to hair dye. When individuals are exposed to certain chemicals present in hair dye, particularly PPD (p-phenylenediamine), the body's immune system may react by releasing histamines. These histamines can cause localized irritation, leading to sensations of itching or the development of rashes on the scalp or skin surrounding the area where the dye was applied. This response is part of the body's defense mechanism as it identifies the dye components as harmful, prompting an allergic reaction.

Other symptoms associated with allergic reactions, such as fever or swelling in the extremities, are less typical in hair dye reactions. While difficulty breathing can occur when there is a severe, systemic response to an allergen, it is not a primary symptom specifically linked to hair dye, which more commonly presents with localized itching or rash. Understanding the specific symptoms helps in recognizing allergic reactions quickly and taking appropriate actions to avoid further exposure or seeking medical assistance.