The presence of blisters on the tongue could possibly indicate a fungal or a bacterial infection, like thrush or even tonsillitis. There is also a possibility that the condition could be the spread by cold sores present in the mouth. These are serious diseases, but there is also the simple act of brushing the tongue that also causes blisters on the tongue. This is probably caused by brushing too hard and is not something that you need to worry about too much. In the case of the infections, you need to act immediately.
Fungal infections like thrush can cause the development of white spots at the back of the tongue and cause a yeast infection. The condition is caused by the same fungus that is responsible for candidiasis and is treated using anti fungal medications like meteronidazole. The tongue usually inflames before the development of the white growths at the back of the mouth and this can be the reason for the blisters in the mouth. This means that the infection is probably in the early stages and must be treated immediately. Bacterial infections of the tongue usually come in the form of an infection that has probably spread from the gums. The predominant suspect for this is the staphylococcus bacteria that usually are responsible for Periodontitis. In the instance that the blisters in the mouth follow the occurrence of cold sores, which are blistered lips, then there is a possibility that the patient is suffering from oral herpes. This condition requires a doctor to look at the infection because, being a viral infection, it is difficult to treat and there is a risk of spreading the infection as well.
Whether infection or otherwise, the following home remedies must be practiced. The first thing to do is to ensure that infections are not the cause of the problem. Since there is no absolute way of determining what kind of infection is causing the problem, get some diluted tea tree oil and use it as a mouthwash. Tea tree oil is an excellent antimicrobial that has the ability to work on bacteria, fungi and viruses. A mouth wash three times a day with this substance will ensure that the infection doesn’t spread and that the populations of microbes is reduced enough for the body to fight the infection easier. Increase the dietary intake of garlic, ginger, and start performing salt water gargles as well.