Can desensitisation therapy be used for patients with anaphylaxis in mastocytosis? 

Desensitisation therapy, or immunotherapy – a treatment in which a patient is gradually exposed to an allergen to reduce the severity of their immune response – may be used in patients with mastocytosis who have a history of anaphylaxis to insect venom (such as bee or wasp stings). However, it’s generally not recommended for food or drug allergies in patients with mastocytosis due to the risk of unpredictable and potentially severe reactions.