Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 6 of 6 for crust
  1. Volcanoes (National Library of Medicine)  
    A volcano is a vent in the Earth's crust. Hot rock, steam, poisonous gases, and ash reach ...
  2. Cold Sores (National Library of Medicine)  
    ... include ointments that numb the blisters, soften the crusts of the sores, or dry them out. Protecting ...
  3. Impetigo (National Library of Medicine)  
    ... after a few days and form a thick crust. They are often itchy, but scratching them can ...
  4. Lead Poisoning (National Library of Medicine)  
    ... a metal that occurs naturally in the earth's crust. Lead can be found in all parts of ...
  5. Shingles (National Library of Medicine)  
    ... their rash blisters appear or after the rash crusts. Who is at risk for shingles? Anyone who ...
  6. Staphylococcal Infections (National Library of Medicine)  
    ... can turn into impetigo, which turns into a crust on the skin, or cellulitis, a swollen, red ...