By its classic and fleeting lesions. Always inquire about association with medicine intake, food exposure,
recent illness, and physical stimuli, but delay work-up for underlying causes until the problem becomes
chronic. Then, do a thorough physical exam, a complete blood count and differential, biochemistry
screening, urinalysis, hepatitis B surface antigen, sinus films, oral examination, stool specimens for ova and
parasites, and an elimination diet.
recent illness, and physical stimuli, but delay work-up for underlying causes until the problem becomes
chronic. Then, do a thorough physical exam, a complete blood count and differential, biochemistry
screening, urinalysis, hepatitis B surface antigen, sinus films, oral examination, stool specimens for ova and
parasites, and an elimination diet.