 [ Symptoms ] i think my son took xanax if i test him how long after could it show do not want to waste the money if its been to long i suspect my son taking xanax a week ago will i be wasting my money on a test if i do a home test now can he still show positive if he did take xanax after a week [ Disease ] most helpful answer cellulitis occurs when the integrity of the skin on any part of the body has been breached to the point where surface bacteria that we all have goes deeper into the tissue skin irritation can come from a chemical source hair products soaps etc  an allergic reaction eczema or a simple scratch or insect bite    basically anything that breaks the skin the ear is a special spongy tissue that is particularly prone to this type of infection especially if you are a picker dirty fingernails picking at scabs will only make things worse cellulitis requires prompt antibiotic treatment so insurance or not you are going to need to seek medical care