Final answer:
Numbness and tingling during and after HV can be a normal or abnormal response depending on the circumstances. If accompanied by other symptoms or persist for a prolonged period, it could signify an underlying medical condition. Further evaluation may be necessary.
Step-by-step explanation:
Numbness and tingling during and after HV (Hair Styling with Heat and Chemical Treatments) can be an abnormal response depending on the specific circumstances. If numbness and tingling occur only temporarily and go away soon after the treatment, it may be a normal response due to increased blood flow or nerve irritation during the process. However, if numbness and tingling persist for a prolonged period or are accompanied by other symptoms such as hair loss, dermatitis, depression, or neuromuscular disorders, it could indicate an abnormal response or an underlying medical condition that requires further evaluation.