What is a common indication of an allergic reaction during electrolysis?

Swelling and redness are commonly observed signs of an allergic reaction during electrolysis. When the body encounters a substance it perceives as foreign, the immune system can initiate a response. This response may manifest as localized inflammation, resulting in swelling and redness at the treatment site.

In electrolysis, allergens could be substances such as certain gels, equipment materials, or even the hair itself. When the skin becomes reactive, it produces histamines and other chemicals that lead to these symptoms. Recognizing these signs is crucial for the electrologist since they may indicate a need to discontinue treatment and address the allergic response effectively.

While increased sensation and skin warmth can also occur as body reactions to the procedure, they do not specifically indicate an allergic reaction. Prolonged hair growth is not associated with an allergic response but rather with the effectiveness of the treatment or other factors affecting hair growth cycles. Thus, swelling and redness stand out as key indicators of an allergic reaction, making this the correct choice.