How to prevent freckles in spring and summer~~~^^

I got dark spots on my face after hiking in the spring...
After enjoying a pleasant hike breathing in the fresh air during the spring and summer seasons
It’s really upsetting to see dark spots suddenly appearing on your face in the mirror!!!

I looked into it because I was curious about prevention methods.

To prevent melasma caused by soaring UV rays
Above all, at least 30 minutes before going out
Apply a generous amount of sunscreen to your entire face, and
Reapply every 2 to 3 hours, even while hiking
I think diligence will be essential!!!

On days with strong ultraviolet rays
You must choose a product with SPF 50, PA+++ or higher.
It effectively blocks the activation of melanin pigment
They say it can prevent new freckles from spreading~~~^^

Also, since sunscreen alone is not perfect
A wide-brimmed hat or a hiking mask with UV protection,
Even wearing sunglasses meticulously
Physically blocking out the sunlight is
I think that would be a good idea!!!

If you sweat a lot while doing outdoor activities
Because the sunscreen is easily wiped off
Carrying a stick-type sunscreen in your pocket
I think it would be very useful to replenish it by rubbing it in frequently!!!

After listening to the opinions of skin experts
Melasma occurs when the skin is dry and exposed to heat
Because it comes up more easily
Drink cool water frequently during the hike.
They say staying hydrated is really important too~~~^^

After descending the mountain, to lower the temperature of the skin irritated by the sun
If you apply aloe gel or a cooling mask pack for soothing care
They say it is very helpful in suppressing the rebellion of melanocytes!!!