Can mercurochrome promote wound healing?

Merbromin generally does not promote wound healing.

Merbromin is a type of antiseptic and disinfectant with bactericidal and antibacterial properties and minimal irritation. It is used for disinfection of superficial skin and mucous membrane wounds as well as local preoperative disinfection, but it does not aid in wound healing. Due to its poor tissue penetration and limited antibacterial effectiveness, merbromin is rarely used in clinical practice today, as incomplete disinfection may lead to infection. Additionally, merbromin contains mercury and should not be used concurrently with iodine tincture to avoid chemical reactions that could harm the skin and mucous membranes. Combining merbromin with gentian violet also reduces its efficacy, so such combination should be avoided. Moreover, merbromin has mild toxicity and should not be used on large-area burns or when there is pus formation in the skin or mucous membranes.

For minor local injuries, cleaning and disinfection can be performed using povidone-iodine or hydrogen peroxide as advised by a physician. Small wounds benefit from exposure to air, which facilitates scab formation. For larger wounds, sterile gauze dressing is recommended to absorb exudate, accelerate local drying and dehydration, promote scab formation, and thereby support wound healing.