Do these numbers indicate anything for chronic hives?

Patient

Q: Hi! I get a lot of rashes/hives. I'm allergic to a bunch of environmental things and received allergy shots for 15 years. I'm also on a lot of allergy medicine, but still break out in rashes. I had a couple blood tests done and this is the results:
-"C4 complements: 13 mg/dL...normal range is 14-40 mg/dL"
-"C1 Esterase Inhibitor Antigen S: 20mg/dL...normal range is 19-37 mg/dL"
-"C1 Estrs Inh, Func: 85% of normal...normal range is >67"
Any idea what this means? I haven't heard back from my doctor yet.
Thanks!

Symptoms:  Hives, rash, itchyness, inflammation
Doctor

A:   This question is currently in queue and will be answered shortly by one of our doctors. In the meantime you may browse our library of answered questions by clicking here.

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