Some good tips...
Foggy glasses, 'maskne' fixed with these simple tips
Snips:
To prevent “maskne,” Jaber recommends washing the face twice daily, with whatever cleanser works best for your skin type and following with a moisturizer around the areas where the mask usually irritates the skin.
Glasses fog because humidity can escape the mask and move upward, coming into contact with the lenses and causing them to fog. Placing a tissue under the top of your face mask can also help absorb some of the droplets, leading to clear lenses. Wearing a mask that can form to the bridge of your nose — one with wire, for instance — can help prevent the warm air from your mouth from reaching your lenses.