Occupational Melanosis Naming

It is now mostly named after occupational melanosis. It is due to workers' long-term exposure to asphalt, coal tar, petroleum products or long-term inhalation of the volatiles of these substances that cause chronic skin inflammation, and eventually skin pigmentation. Therefore, in the process of using and producing the above substances, improve the operation method and minimize the chance of contact. Install ventilation, exhaust, and dust suction equipment to reduce the concentration of smoke and dust in the workshop. When handling asphalt, take necessary protective measures, preferably at night and cloudy days; strengthen personal protection, wear work clothes, work caps, masks and gloves, and apply light-proof protective agents on the exposed parts of the skin; severe dermatitis Stop contact and avoid sun exposure. If the rash is exuding, redness and swelling are obvious, use 3% boric acid aqueous solution to wet compress, and rub zinc oxide oil on the outside. Those with severe systemic symptoms can take corticosteroids and antihistamines, and intravenous drip if necessary. Vitamin C has the effect of inhibiting the production of melanocytes. A large amount of vitamin C can be given intravenously, and it can be combined with multivitamin therapy. For local treatment, 3% hydroquinone cream or 5% white mercury ointment can be used externally for patients with heavy pigmentation.