Q1: How quickly does lime juice cause a burn on lips in the sun?
A1: DNA binding occurs within minutes of application, but symptoms do not appear immediately. Redness and burning typically start 24 hours later, with blisters peaking between 48 and 72 hours after UV exposure.
Q2: Can topical hydrocortisone be used safely on lip burns?
A2: A low-potency 1% hydrocortisone ointment can be applied along the outer lip margin for up to 3 to 5 days to reduce acute swelling and pain. Avoid swallowing the ointment, do not apply it inside the mouth, and discontinue use once severe inflammation recedes.
Q3: How long do dark spots from citrus chemical burns last?
A3: Post-inflammatory hyperpigmentation on the lip line usually lasts anywhere from 6 to 12 months. Healing depends on avoiding re-injury and consistently applying mineral zinc oxide sun protection daily to shield vulnerable melanocytes.
