Thymol mixed as follows
30g thymol crystals placed in honey jar,
add 5ml of isopropyl alcohol to the crystals, place jar into a water bath of boiling water to speed up the dissolving process.

In another jar pour in 140 ml of boiling water and add 1 teaspoon of lecithin granules, stir well, and place this jar into a water bath of boiling water, stirring often for about ten minutes or so until most of the lecithin granules have dissolved, you can then strain this mixture through a tea strainer or similar to remove any granules that have not dissolved fully, then simply add the dissolved thymol to this mix, and shake well, will look just like a jar of milk.

To use add 5ml to each gallon of syrup and stir well, syrup will go milky,

If the mixture forms any crystals at a later date, tip into old small pan and reheat, do this outdoors.

I find this works well in the feed or if the bees are in a bad way or will not take from a feeder
fill a small garden spray bottle and spray the bees and comb directly
Tests have shown Thymol works the best when treating Nosema
As always use at your own risk

PLEASE NOTE
All treatments listed here are used at your own risk!
I use them all myself but you should not use any on production hives for collecting honey for human consumption.