In the case of Lyme, active infection past the 4 week mark is expected to show IgG antibodies. After treatment and resolution of the illness, tests can still show IgG antibodies. And so, IgG can represent either current or past infection.
What Really Happened to Seal's Countenance. But Seal's scars are not the result of violence. Jet reported that Seal's facial scars are the result of the disease lupus. At age 23, Seal developed discoid lupus erythematosus (DLE), a rare form of the disease causing scars. Source: Celebrities Who Have Overcome Obstacles, Jet, June 10, 1996, available at books.google.com.
Hard bumps on the face can be caused by the condition angioedema. This is a type of allergic reaction that causes deep welts to form beneath the skin, typically by the lips and eyes. Certain allergens, such as foods and medications, can trigger the reaction.