Be gentle with the sores. If you find any cold sores on your nose, wash them immediately. It is possible to prevent the infection from spreading by gently cleansing the affected area.\r
If the sores are not too deep inside your nose, you can use a warm soapy washcloth. Before you wash the cloth again, use hot soapy water.\r
Add some antibacterial soap to warm a glass of water until it reaches a temperature that is comfortable and won't burn. If the cold sore isn't too deep, dip a cotton swab into the warm water. You can repeat this process up to three times a day.