with different types of foam systems for structural firefighting and some have deployed front-line. apparatus with class A foam systems as an added tool in their firefighting arsenals. TYPES OF FOAM DELIVERY SYSTEMS. Class A foams consist of a mixture of water, foam concentrate, and air.
Skin Reaction from Vitamin D. I took a natural vitamin D3 supplement for several weeks and had a skin reaction on my back that slowly went away after I stopped taking it. There were no other variables that could have interfered at that time.
1 Vitamin E is an antioxidant, and can help decrease inflammation caused by sunburn. Use Vitamin E oil on the skin, or take a regular dose of the supplement. Vitamin E oil also can be rubbed onto peeling skin.  Apply freshly brewed tea after it has cooled to sunburnt skin using a clean cloth.