small blisters on lips
Introduction
Introduction Small blisters on the lips are more common in cheilitis. Cheilitis is a mucosal disease characterized by dry lips, chapped and desquamation, including dry desquamation cheilitis, allergic cheilitis, benign lymphoproliferative cheilitis, granulomatous cheilitis, glandular lip Various types such as inflammation, fungal cheilitis, and photosensitive cheilitis. According to the course of the disease, there may be acute and chronic cheilitis.
Cause
Cause
Acute allergic cheilitis is a prone to mucosal disease and belongs to type I allergy. The lips are red lips, located at the junction of the human skin and mucous membranes. Due to the close proximity to the body surface, the capillaries are extremely rich. Because the surface structure of the lip red is very thin, the foreign body is easy to "invade", and the immune cells and antibodies that run inside the blood vessel will "stand up" and "decisive battle" with the intruder. Therefore, the lip red area became the battlefield of the antigen-antibody 'blood fight.'
The cause of dry desquamation cheilitis is unknown. May be related to acute inflammation, may also be related to sun exposure, tobacco and alcohol, cosmetic stimulation; white rosary infection can cause fungal cheilitis, deep cracks can extend to the skin, and may bleeding and blood stasis, cracking long-term difficulties More. Grayish white phosphorus can be used to cover the entire lip. Fungal cheilitis is mainly caused by white pseudomembrane or patch. The pseudomembrane is not easy to remove, and there may be redness, ulceration and erosion of the lips. Hyphae can be seen by PAS staining. Patients often rub because of dryness, painful facial lips, and sometimes mild itching.
The incidence of chronic cheilitis is related to various chronic long-term persistent stimuli, such as dryness and cold, especially related to bad habits such as lips and biting lips. Chronic cheilitis can occur on the upper and lower lips, and better in the lower lip. Frequent recurrences, light and heavy, especially during the windy and dry seasons of winter. After sun exposure, the disease occurs, bad lips, biting lips, lip red, thin hail, tearing off and other habits, long-term infection, smashed into cheilitis; lip burns can not form timely chronic inflammation, the body has People with tuberculosis, hepatitis and other diseases are also prone to cheilitis.
Examine
an examination
It is characterized by dryness, desquamation, and cleft palate. Severe performance is swelling of the lips, erosion, inflammatory exudate, blood stasis or purulent formation, pain, and burning sensation. Severe patients may have high fever, muscle and joint pain, headache, cough and other symptoms, and there will be systemic erythematous blister. After blister rupture, the skin will fall off a large area, called "toxic toxic epidermal necrolysis".
Diagnosis
Differential diagnosis
Photosensitive cheilitis is more common in the lower lip, lip red erosive, no light yellow exudate over the red edge of the lip, mild swelling of the lip, lip valgus, and even swelling is obvious, bleeding or ulceration, and blood stasis After the skin is peeled off, a bleeding wound is exposed, or there is pus. Local burning, pain, dryness, itching, increased pain due to friction, blocked lip movements, difficult to heal, can be as long as several months or longer, submandibular lymph nodes, local hyperpigmentation, and benign lymphoid hyperplasia The symptoms of cheilitis are similar to those of photosensitive cheilitis, such as erosion, ulceration, pus and blood stasis, desquamation, chapped, pain, swelling and other symptoms. In addition, white short streaks may appear in the red and near mucosa of the lips, similar to discoid lupus erythematosus, but the lesion does not exceed the red lips of the lips, and there is no rash, and the range of lip erosion of the lichen planus is smaller. There must be a white pattern around it. Polymorphic exudative erythema is an acute onset, more common in young people, characterized by erosive bleeding and blood stasis. In addition, for long-term non-healing lip ulcers, the range suddenly increases in a short period of time, and the pain is not serious, the possibility of lip cancer should be ruled out.
Small blisters on the lips should also be distinguished from small blisters in other parts of the body:
There are small blisters on the hand: small blisters on the hands are seen in sweat herpes. Sweat is also known as a sweaty rash, which is a type of skin eczema. Symmetry occurs on the side of the hand or foot. It is a vesicular skin disease that occurs in the palm of your hand.
Small blisters on the back: small blisters on the back are caused by tinea versicolor, which occurs in sweaty areas such as the chest, abdomen, upper arms, back and neck, and sometimes on the face. The rash begins with tiny spots, mostly around the mouth of the hair follicle, and then gradually enlarges to form patches of varying sizes ranging from pale to dark brown, with small squama-like scales visible on it. Skin lesions develop with the prolongation of time, and spots of pigment loss can be formed over a long period of time, and it is not easy to subside. Pityriasis versicolor usually has few inflammatory reactions because the fungus only parasitizes the stratum corneum of the skin. When the skin lesions are active, occasionally there may be itching.
