Written by Medicover Team and Medically Reviewed by Dr Ravindra Reddy sidhu, General Medicine

Effective Medications for Treating Chickenpox

Chickenpox, also known as varicella, is a highly contagious viral infection that primarily affects children but can also impact adults. Characterized by an itchy rash, fever, and fatigue, chickenpox can lead to severe complications, particularly in adults, pregnant women, and immunocompromised individuals. Effective management of chickenpox symptoms is crucial for reducing discomfort and preventing complications.

This article aims to provide a comprehensive overview of the medications available for treating chickenpox symptoms, with a focus on antiviral drugs, antihistamines, and over-the-counter remedies.

Antiviral Drugs for Chickenpox

Acyclovir

Acyclovir is one of the most commonly prescribed antiviral medications for chickenpox. It works by inhibiting the replication of the varicella-zoster virus, thereby reducing the severity and duration of the infection. Acyclovir is particularly beneficial for individuals at high risk of complications, such as adults, pregnant women, and immunocompromised patients.

Dosage and Administration

The dosage of acyclovir varies depending on the patient's age, weight, and overall health. For adults, the typical dosage is 800 mg five times a day for 5-7 days. For children, the dosage is usually based on their body weight, commonly 20 mg/kg per dose, administered four times a day for 5 days.

Side Effects

Common side effects of acyclovir include nausea, diarrhea, and headache. In rare cases, it can cause more severe side effects such as renal dysfunction and neurotoxicity. It is essential to consult a healthcare provider for appropriate dosing and monitoring.

Valacyclovir

Valacyclovir is another antiviral medication used to treat chickenpox. It is a prodrug of acyclovir, meaning it is converted into acyclovir in the body. Valacyclovir offers the advantage of less frequent dosing compared to acyclovir.

Dosage and Administration

For adults, the typical dosage is 1,000 mg three times a day for 7 days. The dosage for children is determined based on their weight and specific health needs.

Side Effects

The side effects of valacyclovir are similar to those of acyclovir, including gastrointestinal disturbances and headaches. It is crucial to adhere to the prescribed dosage and consult a healthcare provider if you have any concerns.

Chickenpox Medication for Children

Chickenpox generally resolves on its own in children, but in certain situations, medical treatment may be necessary to prevent complications.

Use of Antivirals: In some cases—especially for children above 12 years or those with weakened immune systems—doctors may prescribe antiviral medications like acyclovir. This can help reduce the severity and duration of symptoms if started early.

Managing Symptoms: To ease discomfort, parents can apply calamine lotion to reduce itching and give acetaminophen to manage fever. It’s important to avoid giving aspirin, as it has been linked to a serious condition called Reye’s syndrome in children recovering from viral infections.

Preventing Skin Damage: To lower the risk of bacterial infections caused by scratching, it helps to keep a child’s nails short and clean. You may also consider using soft mittens or gloves, especially at night, to minimize damage from unconscious scratching.

Chickenpox and Antihistamines

Antihistamines are commonly used to alleviate the itching associated with chickenpox. These medications work by blocking histamine, a substance in the body that causes itching and inflammation.

Diphenhydramine

Diphenhydramine, commonly known by its brand name Benadryl, is a first-generation antihistamine that is effective in reducing itching and promoting sleep.

Dosage and Administration

For adults, the typical dosage is 25-50 mg every 4-6 hours, not exceeding 300 mg per day. For children, the dosage is usually 1 mg/kg per dose, administered every 4-6 hours, with a maximum of 150 mg per day.

Side Effects

Common side effects include drowsiness, dry mouth, and dizziness. Due to its soothing properties, diphenhydramine is often recommended for nighttime use.

Cetirizine

Cetirizine, sold under the brand name Zyrtec, is a second-generation antihistamine that is less likely to cause drowsiness than first-generation antihistamines.

Dosage and Administration

The typical dosage for adults is 10 mg once daily. The recommended dosage for children aged 6-12 is 5-10 mg once daily, and for children aged 2-6, it is 2.5-5 mg once daily.

Side Effects

Cetirizine is generally well-tolerated, with the most common side effects being mild drowsiness and dry mouth.

Over-the-Counter Remedies for Chickenpox

In addition to prescription medications, several over-the-counter (OTC) remedies can help alleviate chickenpox symptoms.

Calamine Lotion

Calamine lotion is a topical treatment that can provide relief from itching and discomfort. It contains zinc oxide and ferric oxide, which have soothing and anti-inflammatory properties.

Application

Use a cotton ball or soft cloth to apply calamine lotion to the affected areas. Reapply as needed to maintain relief from itching.

Oatmeal Baths

Colloidal oatmeal baths are another effective remedy for soothing itchy skin. Oatmeal has anti-inflammatory properties that can help reduce irritation and discomfort.

Preparation and Use

Add one cup of colloidal oatmeal to a lukewarm bath and soak for 15-20 minutes. Avoid using hot water, as it can exacerbate itching.

Pain Relievers

Acetaminophen (Tylenol) is commonly used to reduce fever and relieve pain associated with chickenpox. However, aspirin should be avoided in children and teenagers with chickenpox due to the risk of Reye's syndrome, a rare but serious condition.

Dosage and Administration

For adults, the typical dosage is 500-1,000 mg every 4-6 hours, not exceeding 4,000 mg per day. For children, the dosage is based on their weight and age, typically 10-15 mg/kg per dose, administered every 4-6 hours.

Chickenpox Treatment for Adults and Children

While chickenpox is often considered a childhood illness, it can be more severe in adults. Therefore, treatment approaches may vary based on age and overall health.

Treatment for Adults

Adults with chickenpox are at a higher risk of complications such as pneumonia, hepatitis, and encephalitis. Therefore, antiviral medications like acyclovir or valacyclovir are often prescribed to reduce the severity and duration of the illness. Additionally, supportive care with antihistamines and OTC remedies can help manage symptoms.

Treatment for Children

For otherwise healthy children, chickenpox is usually mild and self-limiting. Treatment primarily focuses on symptom relief using antihistamines, calamine lotion, and oatmeal baths. In some cases, antiviral medications may be prescribed for children at high risk of complications.

Conclusion

Effective management of chickenpox symptoms requires a combination of antiviral medications, antihistamines, and over-the-counter remedies. By understanding the various treatment options available, individuals can better manage their symptoms and reduce the risk of complications. Always consult a healthcare provider for personalized advice and treatment recommendations.

Frequently Asked Questions