Your symptoms are due classic accommodative asthenopia. In plain English,  excess use of jear vision.  If you are expecting medicines can cure, you are mistaken. Unless you modify your style of working, no one or no medicine can make any difference. Read about computer vision syndrome and accordingly modify work pattern. In short, do not use mobile for work or for entertainment.  Use it as a communication tool. No chatting,  infotainment or aimless browsing. Sit upright, in an optimum ergonomic posture and for short spells, say 30 to 40 minutes spells and stagger your work. Do not forget to blink. Do not claim my livelihood is computer and you can't afford even a minute of absence from work, a common protest from.all computer users. There will always be ways.

Give cold compression to the eyes twice in a day Take breaks after every 20 minutes. Put lubricating eye drops twice in a day Refresh liquigel eyedrop thrice in a day Blink more often Use anti reflection coating glasses.

Use tear drops 1 drop twice a day for 10 days.if not better consult an ophthalmologist in person

I think you already got answers .. Have 1 digital detox day .. Use lubricating drops .. Take omega 3 supplements

Reduce the brightness of the laptop screen to a comfortable level. Follow 20-20 rule while working on laptop which means that after every 20 mins of screen time take a break of 20 secs and focus on an object kept at a faraway distance. Avoid using these devices in the dark. Room has to be well lit while using these devices. Start using Refresh tears eye drop 4 times a day.