Only putting drops is never the answer. It is a part of the solution. You need to take frequent breaks, blink frequently in between the breaks, ( rule of 20/20/20). Also eat healthy, complete sleep and Blue cut spectacles are a must. Ergonomics also plays an important part- screen should be at eye level, back posture should be proper. If possible use a desktop/ keep a larger font.
Health Tips
Drops are not a long term solution. It is helpful till you do all the above changes.