If your sick leave has started before the start of the strike, your right to a sick pay is determined by the collective agreement. Submit your medical certificate concerning the sick leave to the employer before the strike begins.
If the strike has begun before you fell ill, you are not entitled to sick pay. Apply for daily sickness allowance from Kela.
If your sick leave continues after the strike has ended, your right to sick pay is determined by the collective agreement.
An employee who falls ill when on strike should immediately obtain a medical certificate.