macro skin with chickenpox, vesicles at different stages.

antihistamine baby blister blisters body chickenpox child childhood closeup contagious dermatology diagnosis disease diseases disinfection health illness immunity infection itching itchy kid macro measures medical pain papules pediatrics pimples preventive pustules quarantine rash recovery relief scabbing scabs scratch scratching skin smallpox square symptom symptoms treatment varicella vesicles virus white