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C Dew drop like rashes
Both the diseases cause rashes in the form of red spots, but they are different from each other.
A chickenpox rash classically presents as small, fluid-filled blisters on a red base, sometimes described as 'dew drops on rose petals'.
The infection has three stages. It starts out with the appearance of little, itchy bumps. Those bumps turn into blisters filled with fluid. The final stage is the scabbing over of the bumps.
In measles, two or three days after symptoms begin, tiny white spots (Koplik spots) may appear inside the mouth. Three to five days after symptoms begin, a rash breaks out. It usually begins as flat red spots that appear on the face at the hairline and spread downward to the neck, trunk, arms, legs and feet. Small raised bumps may also appear on top of the flat red spots. The spots may become joined together as they spread from the head to the rest of the body.