Zinc oxide is a powdered mineral that sits on top of the skin, scattering, reflecting, and absorbing UVA & UVB rays. Although zinc oxide is the safest and most effective active sunscreen ingredient, the best protection from the sun is to seek shade and cover up with clothes and a hat.
Story at-a-glance 1  -. With immediate and antibiotic-free treatment, strep throat can improve in two to five days, up to a week. 2  Immediate treatment of strep throat is very crucial not just for quick recovery, but because an untreated case of strep throat can lead to further complications.
4 doctors agreed: Strep throat: Recovery from strep depends on whether or not you receive antibiotic treatment. Usually, 7-10 days is all it takes to start feeling better although it is not uncommon to take 2 weeks or longer to feel totally back to normal. ...Read more.