From the TCM perspective: Low-grade fever: latent heat or qi/yin deficiency
Overview
A persistent or recurrent low-grade fever (about 37.5-38 C) in a well child is not managed like acute fever. TCM distinguishes food stagnation transforming to heat (after overeating), summer damp-heat, post-illness yin deficiency and qi deficiency. Accurate measurement and the child's general condition matter more than the number.
☯Common patterns (syndrome differentiation)
1
Food stagnation transforming to heat
Key distinguishing signs
Mild evening heat with bloating, foul breath, restless sleep and foul stool, thick coat
Treatment principle
Digest stagnation and clear mild heat
2
Summer damp-heat
Key distinguishing signs
Low fever with lethargy and poor appetite in hot humid weather, heaviness and sweat, greasy coat
Treatment principle
Clear summer heat, transform dampness and boost qi
3
Post-illness yin deficiency
Key distinguishing signs
Mild evening heat with rosy cheeks, night sweat and dry mouth, red tongue with little coat
Treatment principle
Nourish yin and clear latent heat
4
Qi-deficiency fever
Key distinguishing signs
Fever fluctuating with exertion, fatigue, weak voice, spontaneous sweat and poor appetite, pale tongue
Treatment principle
Tonify and upraise qi
Daily self-care
Measure accurately (axillary/rectal by age) and log times; do not rely on touching the forehead.
Hydrate, use light clothing, ventilation and rest; do not bundle or use alcohol/ice rubs.
See a doctor if it lasts more than a few days or recurs with weight loss or night sweat.
When to seek medical help
The following warning signs require prompt medical evaluation — do not rely on self-treatment:
Fever ≥38 C in an infant under 3 months.
Lethargic child not drinking, fast/labored breathing, seizure, non-blanching rash or severe dehydration.
Fever with stiff neck, repeated vomiting, painful urination or persistent abdominal pain.
Medical disclaimer: Educational content about traditional Chinese medicine for information only; it is not a diagnosis or treatment and does not replace a qualified clinician. If symptoms worsen or warning signs appear, seek medical care.