Is shingles contagious?

Written by Zhu Zhu
Dermatology
Updated on September 09, 2024
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Shingles is caused by the varicella-zoster virus, which is the same virus that causes chickenpox. Therefore, shingles is contagious to people, especially children, who have never been infected with the virus. The virus is primarily transmitted through the respiratory tract. Thus, it is recommended that if someone in the household contracts shingles, particularly in households with children, it is crucial to avoid close contact and to implement appropriate isolation measures. It is also important to keep windows open for ventilation to prevent transmitting the virus to children, who may develop chickenpox, or to some adults who may also be susceptible to chickenpox if they have never been infected with the virus before.

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Written by Xie Ming Feng
Dermatology
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Shingles is what disease?

Shingles is primarily caused by the varicella-zoster virus, which enters the human bloodstream through the respiratory tract mucosa, leading to chickenpox or a latent infection. The virus then lies dormant in the nerve ganglia of the body. Certain triggers, such as trauma, fatigue, weakness after illness, malignant tumors, or the use of immunosuppressants, can decrease the body's resistance and activate the dormant virus, resulting in shingles.

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Written by Zhu Zhu
Dermatology
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Does shingles leave scars?

After shingles heal, in most cases, there are no scars left. Shingles typically cause symptoms such as blisters or rashes on the skin, which are mostly located in the epidermal layer of the skin and do not infect below the dermis. Therefore, once these blisters heal, they only scab over on the epidermal layer. After the scab falls off, the original skin regrows without any scarring. However, if the patient is prone to scarring, they are generally left with scars.

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Written by Zhu Zhu
Dermatology
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Can people with shingles take a bath?

Whether you can bathe during shingles depends on the individual. If it is in the early stage of shingles, where only some blisters have formed and the skin has not broken, you can occasionally bathe. However, if the shingles are severe and have led to an infection with broken skin and bacterial infection, it is not advisable to bathe. In general, it is better to avoid bathing while suffering from shingles, as this can aid in the recovery of the condition. If you feel dirty, it is recommended to wipe yourself with a wet cloth.

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Written by Zhu Zhu
Dermatology
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How is herpes zoster transmitted?

Shingles is caused by the activation of the varicella-zoster virus that lies dormant in the nerve roots, affecting both the skin and nerves. There are several ways shingles can spread, mainly through direct contact or droplet transmission. Direct contact transmission primarily occurs because the blister fluid in shingles blisters contains a high concentration of the virus. Therefore, before the blisters of a person with shingles are completely dry, they are somewhat contagious, primarily affecting those with lower resistance such as the elderly, children, women of childbearing age, pregnant women, and so on.

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Written by Zhu Zhu
Dermatology
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How many days can herpes zoster be cured?

Herpes zoster is a viral infectious skin disease that is most prone to epidemic in the spring, primarily caused by the varicella-zoster virus. It generally lies dormant in the body causing a belt-like cluster of herpes zoster to appear along the dermatome, accompanied by neuralgia. The course of herpes zoster generally lasts three to four weeks, and it usually does not recur after recovery. The main principles of treatment are antiviral, analgesic, anti-inflammatory, to shorten the duration of the disease, and to prevent secondary infections.