Dermatology

Question 1

Pityriasis rosea

Answer 1

Acute exanthem, commonly affects children and young adults.
HHV6 and HHV7
Initial herald patch, followed by the development of a diffuse papulosquamous rash.

Question 2

Alkali burns vs acid

Answer 2

Alkali burns causes liquefactive necrosis of involved tissues. Acid burns cause coagulation necrosis, which is slower in manifestation.