If an employer fires an employee for an unlawful reason, this is referred to as wrongful termination and can lead to a legal claim. Call 713-369-5978 today or fill out the form below to find out if you have a case.In Texas, the deadline for filing wrongful termination claims is 180 days from the date of your dismissal. If you are wondering what to do if you are punished or fired for taking sick leave, the answer is simple: reach out to a labor attorney like myself. Wrongful Termination. Employment discrimination generally exists where an employer treats an applicant or employee less favorably merely because of a person's protected class. Employees who have been wrongfully terminated while they are sick have the option to pursue financial recovery. If the employer's reason for termination were unlawful, then the employee can bring a wrongful termination claim. Employees who have been wrongfully terminated while they are sick have the option to pursue financial recovery. That said, an employee who has been taking excessive sick leave days that negatively impact the operation may be fired.