The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
Vomiting of fluids soon after drinking can be the consequence of several so-called “patterns of disharmony” in Chinese Medicine.
Chinese Medicine sees the body as a system, not a sum of isolated parts. A "pattern" is when the system's harmony is disrupted, leading to symptoms or signs that something is wrong (like vomiting of fluids soon after drinking here). It is similar to the concept of disease in Western Medicine but not quite: a Western disease can often be explained by several Chinese patterns and vice-versa.
A pattern often manifests itself in a combination of symptoms that, at first glance, do not seem necessarily related to each others. For instance here vomiting of fluids soon after drinking is often associated with aversion to cold, fever and urinary retention in the pattern “Greater Yang Accumulation of Water”.
Once identified, patterns are treated using medicinal herbs, acupuncture, and other therapies. In the case of vomiting of fluids soon after drinking we’ve identified that a herbal formula called Wu Ling San can help treat the patterns behind the symptom.
In Chinese Medicine vomiting of fluids soon after drinking is a symptom for the pattern "Greater Yang Accumulation of Water". Below is a small explanation for it with links for more details.
Pulse type(s): Rapid (Shu), Floating (Fu)
Greater Yang Accumulation of Water is often treated with Wu Ling San, a herbal formula made of 5 herbs (including Water Plantain - Ze Xie - as a key herb). Wu Ling San belongs to the category of "formulas that promote urination and leach out dampness", which might be why it is often recommended for this pattern. Its main action as a formula is: "Promotes urination,".
Source date: 220 AD
Number of ingredients: 5 herbs
Key actions: Promotes urination,. Warms the Yang. Strengthens the Spleen. Promotes Qi transformation function. Drains Dampness. Clears edema.
Because it is a formula often recommended to treat the pattern 'Greater Yang Accumulation of Water' of which vomiting of fluids soon after drinking is a symptom.
Its main actions are: Causes urination and removes Damp-Heat