Tongue lichen planus getting bigger and bigger generally need to consider the possibility of bacterial infection or dietary stimulation, it is recommended to take antibacterial drugs, regular oral cleaning or dietary adjustments to improve. 1. antibacterial drugs: tongue lichen planus is mostly caused by bacterial infection, so after the symptoms worsen or localized lichen planus enlargement, you can choose antibacterial drugs for effective treatment, such as amoxicillin, levofloxacin and so on, which are able to inhibit bacterial proliferation and infection effectively. 2. Oral cleaning: when there is bacterial infection or tinea versicolor on the surface of the mouth or tongue, you can use mouthwash to keep the mouth clean regularly, you can choose rehabilitation new liquid, gargle chlorhexidine and so on. 3. Adjust the diet: part of the tongue lichen planus enlargement and diet spicy stimulation has a certain link, so the daily diet should be light, as little as possible to eat spicy stimulation or raw food. After the tongue lichen planus is getting bigger and bigger, you should choose the medication under the guidance of the doctor and adjust your diet appropriately.