Scabs protect the scraped skin from forming an infection, so the fastest way for a scab to heal is to make sure it is protected from cracking open, explains WebMD. A rubbed-off scab typically causes the wound to bleed or ooze pinkish or yellowish fluid, which prolongs healing.
Scabs protect a wound from dirt and germs while new skin grows underneath, explains WebMD. Scabs may itch, but scratching one too early may introduce bacteria in the wound and cause it to heal more slowly. The scab falls off on its own when the new skin under it forms fully. Supplementing with antioxidants such as vitamin C, bromelain, rutin and grape seed extract has shown to speed up healing.
According to MedlinePlus, people with diabetes are likely to have slow-healing wounds and may need to see a doctor for treatment of the condition. Poor blood flow due to clogged arteries is another reason why wounds may heal slowly. Heavy alcohol abuse and smoking make wounds heal more slowly. Getting enough sleep, reducing stress and eating well all speed up the healing process.
Medications such as corticosteroids, nonsteroidal anti-inflammatory drugs and chemotherapy drugs can slow healing, acccording to MedlinePlus. If a scab is very slow to heal, a doctor may better care for it.
The healing of a wound and scab depends on the size, depth and location of the scrape, according to WebMD. Wounds often heal faster once a scab is formed as long as the scraped area of the skin remains dry. An infection can form underneath the scab, so it is crucial to keep the wound clean.