Varicellahttps://en.wikipedia.org/wiki/Chickenpox
Varicella is a highly contagious disease caused by the initial infection with varicella‑zoster virus. It produces a characteristic skin rash of small, itchy blisters that eventually scab over. The rash usually begins on the chest, back, and face, then spreads to the rest of the body. Accompanying symptoms such as fever, fatigue, and headache typically last five to seven days. Complications may occasionally include pneumonia, inflammation of the brain, and bacterial skin infections. The disease is generally more severe in adults than in children.

Chickenpox is an airborne disease that spreads easily from one person to another through the coughs and sneezes of an infected individual. The incubation period is 10 to 21 days, after which the characteristic rash appears. Transmission can occur from one to two days before the rash appears until all lesions have crusted over, and it may also spread through direct contact with the blisters. Most people acquire chickenpox only once; although reinfection with the virus can occur, it usually does not cause symptoms.

Since its introduction in 1995, the varicella vaccine has led to a marked decrease in the number of cases and complications. Routine immunization of children is recommended in many countries. Since immunization, the number of infections in the United States has decreased by nearly 90%. For individuals at increased risk of complications, antiviral medication such as acyclovir is recommended.

○ Treatment
If symptoms are mild, over‑the‑counter antihistamines can be used and monitored. For more severe symptoms, prescribing antiviral drugs may be necessary.

#OTC antihistamine
#Acyclovir
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  • A boy is presenting with the characteristic blisters of chickenpox.
  • This is a typical chicken pox lesion. It is characterized by a mixture of blisters, erythema, and scabs occurring simultaneously. It can happen even if you have been vaccinated. If you have been vaccinated, symptoms may be mild. There can be rapid improvement with antiviral treatment.
  • If you have been vaccinated against chickenpox, the symptoms may be mild, making the disease harder to diagnose.
  • A single blister is observed; however, as shown in the photo, it is characteristic that erythema is also present around it.
  • Child with Chickenpox
References Varicella-Zoster Virus (Chickenpox) 28846365 
NIH
Chickenpox or varicella is a contagious disease caused by the varicella-zoster virus (VZV). The virus is responsible for chickenpox (usually primary infection in non-immune hosts) and herpes zoster or shingles (following reactivation of latent infection). Chickenpox results in a skin rash that forms small, itchy blisters, which scabs over. It typically starts on the chest, back, and face then spreads. It is accompanied by fever, fatigue, pharyngitis, and headaches which usually last five to seven days. Complications include pneumonia, brain inflammation, and bacterial skin infections. The disease is more severe in adults than in children. Symptoms begin ten to 21 days after exposure, but the average incubation period is about two weeks.