Do these numbers indicate anything for chronic hives?

Patient : 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
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