First aid for asphalt poisoning
Phototoxic dermatitis
Avoid sunlight. If the skin lesions have exudation, apply 30% boric acid wet compress.
Papules and herpes can be treated with topical glucocorticoid cream or calamine lotion. Fluorinated glucocorticoids should not be used on the face.
Melanosis
1. Apply 3% hydroquinone cold cream topically.
2. Take vitamin C orally or intravenously.
3. Take vitamin A and vitamin E.
Acne
Wash the affected area with soap and warm water every day, and apply 5% benzoyl peroxide cream, 5% sulfur cream or 0.05% retinoic acid cream.
Heat burns
The skin can be cleaned by gently wiping with gauze soaked in kerosene.