Based on the location you have described it sounds like a pinguecula which is an elevated lesion of the white part of the eye. Pingueculas have been associated with exposure to sunlight and are benign. They can become inflamed on occasion. I suspect that is to blame here.
Here is a picture to compare your eye to.
You can use artificial tears or even allergy drops. I recommend Systane or Blink brand artificial tears and Zaditor or Alaway for the allergy drop. Use the tears 4 times daily and/or the allergy drops twice daily.
I see you have entered the chat. Please let me know if you have any further questions.
How did the picture compare to the appearance of your eye. Please consider leaving a positive rating when your question has been answered fully. Thanks again.