Welcome to HCM.
I think what you have noticed is 'pinguecula' which is a benign conjunctival degeneration seen on either side of the Cornea(transparent part of the eye). It cannot be removed with Q tip :). Don't worry about it until it bothers you by causing redness/irritation/ grows bigger in size and towards the Cornea (when it's called pterygium
Pingecula is very common in tropical countries and people who get a lot of sun exposure/ those who do a lot of outdoor activity.
It can be surgically removed especially if it is causing trouble while blinking / for using contact lens/ any other visual problems.
So get it confirmed with your physician or ophthalmologist and use a hat/umbrella outdoors to avoid excess UV rays, lubricant eye drops just for soothing.
Take care :).