There are a variety of things that can cause cold sores and it's a good idea to be extra vigilant if you are susceptible to them. Even stress and lack of sleep can cause cold sores, so try to get a good night's sleep.  If you come down with a cold, fever or flu, your risk of an outbreak may increase because your immune system is compromised. Make sure you're getting all your necessary vitamins and eating healthfully. Menses, pregnancy, hormonal changes, and even sunlight can cause a cold sore to act up. Stress may trigger cold sore outbreaks, so do everything you can to relax. Set some time aside each day to meditate, take deep breaths or simply have a cup of tea, whatever works for you. Fatigue triggers outbreaks, so make sure you get plenty of sleep. Take naps if you need to Too much exposure to the sun can aggravate the area and cause cold sores to emerge. If you do overexpose your lips to the sun, try to ice them as soon as possible, for several minutes. Also, look for a lipstick or lip balm with sun protection of SPF 15 or higher and apply it frequently throughout the day. Know the signs so you can act before your cold sore has a chance to form.   Tenderness, tingling, burning, itching, numbness and pain around your lips may mean a cold sore is forming.  Fevers and other cold and flu symptoms often accompany cold sores, hence the nickname “fever blisters.” Cold sores usually arrive with a warning period of red, irritated skin. Blisters form, burst, and then crust over before they heal. It is in its prodromal stage for 6 to 48 hours before it becomes visible. During this time, you may use the following methods to prevent the sore from surfacing. This is the best time to stop it, rather than having to wait once it gets big and nasty!  Ice it or apply a cold compress. Do this hourly, or as frequently as possible. Steep a teabag in hot water, let it cool and then hold it against the afflicted area. Cold sores thrive in heat, so be sure to let the tea bag cool beforehand. Apply lip balm with sun protection of at least SPF 15. Reapply it frequently throughout the day. Cold sores are not caused by colds, but a cold lowers your immune system and can trigger them. When you come down with a fever, cold, or flu, your immune system is compromised and busy fighting something else.  Make sure you're getting all your necessary vitamins. Eat lots of leafy greens, and colorful vegetables, as well as salmon, nuts, and fruit. Drink white and green tea. Both are rich in antioxidants, which strengthen your immune system and cleanse your body of toxins. Drink lots of water. Get enough sleep.
تجنب أسباب حدوث قرحات الزكام. تعرف على قرحات الزكام قبل ظهورها على السطح. تعامل مع قرحات الزكام على حسب مرحلتها. احرص على حماية شفتيك من الشمس طوال الوقت. حافظ على صحتك.