Is it permissible to compromise on the hijab temporarily for the purpose of practical training in the hospital, where wearing the full hijab is prohibited to reduce the risk of infection, while it is allowed in the future work environment?

A woman must cover her 'awrah (intimate parts) from non-mahram men, and this includes her forearms. Uncovering the 'awrah is not permissible except in cases of necessity or dire need, such as medical treatment or a suitor's viewing. It is not permissible to uncover it for six months for the purpose of work. Mixing between men and women in work and study is forbidden. Therefore, one must search for permissible work where the woman is safe from uncovering her 'awrah and from unlawful mixing.