What you are experiencing is commonly called as computer vision syndrome. You need to take a few steps to ensure better comfort.
Wash your eyes gently with cold water twice a day. Make sure u place the laptop on a desk and sit on a chair while working for long duration. Use glasses and adjust screen brightness to reduce glare and eye strain. Do not use laptop in a dim lit room. Follow 20 - 20 - 20.
Start eye drop cmc - 1 drop in both eyes, 3 times a day
Next Steps
If the symptoms do not subside within a week, consult an ophthalmologist nearby or by online consultation.
Health Tips
Use ice packs. Take regular breaks.