How many days does it usually take for a baby's internal heat-induced fever to subside?

Generally speaking, fever refers to an elevated body temperature. In babies, internal heat-induced fever usually subsides within 3 to 7 days. The exact duration depends on the severity of the condition. Internal heat in infants may be related to food stagnation, improper diet, visceral dysfunction, external pathogenic factors, or excessive liver fire. It is recommended that parents follow medical advice for symptomatic treatment. Specific analysis is as follows:

1. Food Stagnation

Due to their young age, babies often lack awareness of hunger and fullness. Overeating or irregular eating habits can lead to food stagnation, which in turn generates stomach heat, resulting in symptoms such as bad breath, constipation, abdominal distension, and toothache. Parents may, under a doctor's guidance, use common medications such as Baohe Pills or Baoji Pills for treatment.

2. Improper Diet

If a baby frequently consumes spicy or greasy foods, these may accumulate in the gastrointestinal tract and fail to be digested and absorbed in time, leading to internal heat. Parents are advised to adjust the child’s diet appropriately by offering light, easily digestible foods. Drinking warm water in moderation can also promote metabolism and help alleviate symptoms.

3. Visceral Dysfunction

Because babies are still developing, their organ systems—including digestive and metabolic functions—may not yet be fully mature, potentially causing poor circulation of qi and blood and resulting in the aforementioned symptoms. Parents can cooperate with healthcare providers to use supportive therapies such as massage or pediatric tuina (therapeutic manipulation). Additionally, medications such as Qingkailing Granules or Xiao’er Resuqing Oral Liquid may be taken as directed by a physician.

4. External Pathogenic Invasion

Sudden weather changes, inadequate clothing, and poor self-care may allow wind-heat pathogens to invade the body and transform into internal heat, causing fever and other signs of internal heat. Parents should, under medical supervision, administer remedies such as Xiao’er Jiebiao Granules or Compound Jin Yin Hua Granules to improve the condition.

5. Excessive Liver Fire

If a baby has a short temper and becomes easily agitated or angry, this may lead to excessive liver fire, manifesting as internal heat, flushed face, red eyes, tinnitus, constipation, and a bitter taste in the mouth. Under a doctor’s guidance, parents may give the child medications such as Danzhi Xiaoyao Pills or Longdan Xiegan Pills.

In addition, emotional imbalances may also contribute. If a baby shows any discomfort, it is advisable to seek prompt medical attention at a hospital to avoid delaying treatment.