The fastest ways to treat a cold sore in the nose include using over the counter medications and other drying agents, including toothpaste. Most methods will not fully alleviate cold sores, but they may help to speed healing and shorten the duration of inflammation.

One of the best ways to treat a cold sore in the nose is to purchase an over the counter cream or ointments. These are sold in most pharmacies and act to promote healing and reduce the appearance of cold sores. They are usually very affordable and many are safe to use anywhere on the body. Check with a doctor or pharmacist before using in the nose, however, to ensure safety.

It is usually a good idea to avoid many home remedies when treating a cold sore in the nose. Substances like rubbing alcohol or nail polish remover often emit fumes which may be harmful if inhaled in large amounts. They may also burn the nasal passages and lead to further injury. If you must use a home remedy, you can try a small amount of toothpaste directly on the cold sore. Using an option with a mild scent is generally a good idea.

If you have a cold sore in the nose which lasts for more than a week, you should have it checked by a physician. In some cases, another medical condition may be to blame. Cold sores are caused by a form of herpes simplex virus, so there are no cures for them aside from your body's own immune system. You may be able to boost your immune function by taking vitamins and other dietary supplements. Discuss these options with your doctor or pharmacist.

Other conditions may resemble a cold sore in the nose, such as acne or an injury. Do not attempt to squeeze or pick a cold sore. Be sure to wash your hands thorough after applying medication to avoid spreading infection to other areas of the skin. If the sore begins to drain or ooze, clean the area carefully with warm water and apply an antibiotic ointment to avoid infection.