What kills chickenpox and cold sores once they break open?

There is currently no known cure for chickenpox or cold sores, which are caused by the Varicella-Zoster virus. Treatment focuses on relieving symptoms and preventing complications. Once the lesions break open, the virus is highly contagious and can spread through contact with the fluid from the lesions. It's important to keep the lesions clean and avoid touching or scratching them to prevent further spreading of the virus.

The following measures may help speed up the healing process and alleviate symptoms:

1. Antiviral medications: Antiviral medications such as acyclovir, valacyclovir, or famciclovir may be prescribed to help shorten the duration and severity of the infection. These medications are most effective when started within the first 24-72 hours of the outbreak.

2. Topical treatments: Applying calamine lotion, zinc oxide cream, or other over-the-counter topical medications can help relieve itching, dryness, and discomfort caused by the lesions.

3. Pain relievers: Over-the-counter pain relievers such as ibuprofen or acetaminophen can help reduce fever, headaches, and muscle aches associated with chickenpox and cold sores.

4. Rest and hydration: Getting adequate rest and drinking plenty of fluids can support the body's natural healing processes.

5. Protection: Avoiding contact with others, especially those with weakened immune systems, is important to prevent spreading the virus. Good hand hygiene and covering the lesions can help minimize transmission.

6. Soaking in colloidal oatmeal bath: Oatmeal has anti-inflammatory properties which may help provide relief from itching.

It's essential to follow the instructions and advice provided by a healthcare professional regarding the specific treatment and precautions necessary for your condition.