Your symptoms indicate that either there is allergy or dryness or both. And if you are a regular computer user if so it might be computer vision syndrome.
For all above conditions you may use antiallergic eye drops e.g. olopatadine and lubricant eye drops e.g. teardrop 2to3 times daily and rub ocupol d's eye oint twice daily on lids.
Next Steps
for computer vision syndrome
Follow 20.20.formula ie close your eyes for 20seconds after every after every 20minutes.keep proper distance between eyes and screen wash your eyes with freshwater frequently and don't sit facing towards a/c or. blowers consume lots of fresh fruit and vegetables and also do cold compresses with ice .