You can't. The contents of caffeine and theophylline in milk tea are relatively high. Drinking milk tea will lead to excessive excitement and insomnia, and patients will not get enough rest, which will affect the recovery of their illness. At the same time, milk tea contains a lot of sugar and food additives, which will increase the gastrointestinal burden of patients, lead to symptoms such as abdominal pain and diarrhea, and also induce symptoms such as cough and expectoration, which will aggravate the condition.