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.
The most important treatment for strep throat is antibiotics, so if you have symptoms, see your doctor. All it takes is a simple throat culture to diagnose strep. With antibiotics, symptoms will improve quickly, usually within 24 to 48 hours. After 24 hours on antibiotics, youâre no longer considered contagious. Your doctor may prescribe a course of antibiotics that last up to two weeks.