First of all, there are blisters on the lips, which may be caused by herpes virus. First, local plasters should be used for disinfection during treatment. If you are infected, you should take some antiviral drugs orally. Of course, this needs to be done under the guidance of a doctor.

If the symptoms are not serious, you can eat more fresh vegetables and fruits rich in vitamin C to enhance your disease resistance, and you can also eat more foods that reduce fire and heal wounds.

Finally, you can eat more foods rich in vitamin B, such as coarse grains, peanuts, milk, etc., to avoid mental stress, pay attention to nutrition and enhance resistance.

There are mainly the following reasons:

First of all, blisters on the lips need to be caused by overeating or lack of sleep and stress. Secondly, lack of exercise at ordinary times will lead to decreased resistance and easily induce viral infection. It may also be that herpes simplex virus infection leads to decreased immunity, which leads to a large number of herpes viruses lurking in the body, leading to blisters on the corners of the mouth.

Blisters on the lips are probably caused by excessive internal heat. At this time, be careful not to eat spicy and irritating food, such as pepper, otherwise it will easily irritate the lips, leading to more serious blisters on the mouth; Secondly, don't eat seafood. Seafood belongs to hair, which is easy to aggravate the symptoms of long bubbles. Finally, don't eat fried food, which will easily aggravate the heat and lead to serious long bubbles.

Generally speaking, we should eat more light food and fruits and vegetables rich in vitamins, which can provide enough energy for human body, enhance human immunity and be good for human health.

It depends on the actual situation.

Cold sores need to know the cause before they can be treated. Generally, if the treatment is timely and the symptoms are not serious, it only takes about 3-5 days. However, if not treated in time, the symptoms will be aggravated and the healing time will be prolonged, which may be about 7- 10 days, sometimes longer. Lip blisters in life are mostly caused by herpes virus infection, so don't touch them casually, which will easily aggravate the infection; Secondly, it may also be a local blister caused by excessive internal heat. Squeezing by hand will aggravate the condition, so pay attention to local hygiene.