If dense blisters appear on the lips, you can observe the situation. 1, if the blisters are not serious, but only very dense, it is not necessary to pick them, but to apply stomatitis oil on the lips, such as anti-inflammatory ointment for stomatitis can relieve the above clinical symptoms and performance. 2, if the dense blisters on the lips are caused by contact allergy, you can take anti-allergy drugs, preferred antihistamines If the blisters are large, you need to go to the hospital and use a sterile needle to pick them out, but try to do it aseptically, squeeze out the water inside or the pus and blood inside, then use alcohol and iodophor to further disinfect and treat them, and if you have the conditions to go to the hospital, you can inject a tetanus shot and then The next step of disposal and treatment.