It feels like that because these are the side effects caused by this medicine.
Tobradex is used to treat bacterial infections of the eyes. Tobradex is available in generic form.
Common side effects of Tobradex include eye redness, discomfort, burning, stinging, irritation, itching, eyelid itching/swelling, blurred vision, or sensitivity to light.
Use of Tobradex for prolonged/repeated periods may result in new fungal eye infection and may increase your risk for other eye problems (e.g., glaucoma, cataracts). So you should not use it continuously that you were doing.
And if you still have any issues then you must consult Eye Specialist in Faridabad who can help you with the after-effects of the continuous use of Tobradex