06/09/2021
Sunburns
Damage to skin starts occurring within the first hour of UVR exposure. Within 2 hours after UV exposure, damage to epidermal skin cells. Erythema usually occurs 3-4 hours after exposure, with peak levels at 24 hours.
“Most sunburns are first degree, meaning the skin is red, it’s painful, but it doesn’t actually blister. It may later peel off,” he said.
These kinds of sunburns can be treated with a cool shower, cool compress, over the counter pain medications or an aloe gel that contains soothing products.
More serious are second-degree sunburns. “A second-degree burn is where the skin actually blisters and peels off in the more acute phase, or shortly after the sun exposure, with a weeping, filled blister,” Its recommended to treat these second-degree sunburns with a topical antibiotic ointment or petroleum jelly. Additionally, those with extensive blisters should seek medical attention to ensure they are receiving the right care to help their skin heal.
Third-degree sunburns rarely ever happen.
Prevention is the best protection. Try to avoid sun exposure between 10 am and 4 pm.
Apply sunscreen at least 30 minutes prior to sun exposure, and reapply every 2-3 hours or after swimming, sweating, or toweling off.
Apply at least 2 mg/cm2 of sunscreen to achieve the advertised SPF (about 30 mL is adequate coverage for an average adult's entire body). Most people apply one fifth of this amount.
It is recommended to use a SPF 45 or higher to protect skin from sun damage. This protection can prevent premature aging of the skin and reduce the risk of skin cancer. In addition to sunscreen, wearing UV protective clothing is another line of defense to keep your skin healthy.