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.
Sore throats caused by viral illnesses usually last 4 or 5 days. A sore throat caused by Strep will start feeling better soon after being treated with antibiotics. After a child has been taking medicine for strep for 24 hours, strep is no longer contagious. Your child can then return to day care or school if his fever is gone and he's feeling better. Your child must take all of the antibiotic even if he is feeling better.