There are a small number of studies, two examples of which are:

http://www.ncbi.nlm.nih.gov/pubmed/9828874

http://www.ispub.com/journal/the-internet-journal-of-dermatology/volume-3-number-2/acupuncture-in-the-treatment-of-chronic-urticaria-a-double-blind-study.html

which make encouraging comments about the value of using acupuncture to treat urticaria. Of the common skin problems a great deal more research has been done on eczema and psoriasis, mainly because it is easy to put together a sufficiently large group for trial purposes, and the conditions are more clearly defined. Much of this research in undertaken in China, and doubt is often cast on the methodological soundness, which is why it is rarely accepted without great qualification in the West.

As you may have read in other answers on this website one of the strengths of Chinese medicine is that the patient's symptoms often make sense directly within the diagnostic categories which are unique to Chinese medicine. How a symptom feels, where it is, what times of day or night it feels better, what helps it to be more bearable often lead a practitioner, together with diagnostic signs like taking the pulse and looking at the tongue, to some fairly straightforward treatment strategies.

That said, from the first study you will see that there is a point prescription which is widely used to treat urticaria. This is often the case in Chinese medicine - for all the subtleties of diagnosis there are often some fairly routine agreed solutions. The skill of the practitioner often rests on determining whether treating at this level will make the problem get better and stay away, or whether there are underlying constitutional issues which might need to be corrected to ensure that someone stays well.

As always, we recommend that you find a BAcC member local to you and ask their advice on your unique presentation.