My husband is 67 years old. His left eye had turned red the white portion. Consulted family doctor she asked me to put ciplox drops. I put the drops for few days it was ok. Now again it has turned red. please help no irritation or itchy it's normal but red the outer side. I put the drops in the affected eye. Should I put in both the eyes. Kindly help. He is having pressure medicine. And prostate medicine udiliv and cotton. Rest no medicine.