Answer:
The answer is: Allergen immunotherapy
Step-by-step explanation:
Allergen immunotherapy, or desensitization, is a medical treatment that is used in the prevention of serious medical conditions such as asthma and environmental allergies.
In this treatment, the patient is exposed to large amounts of the allergens via shots (injections) or sublingual immunotherapy (allergy tablets), which ultimately changes the response of the immune system and thus leads to the prevention of the disease.