| Immunoglobulin G mg/dl. | ||||
| Groups | Before | After | Paired t-test | |
| Mean ± SD | Mean ± SD | T | p value | |
| Urticaria (G1) | 1034.393 ± 190.308 | 1698.929 ± 291.298 | −12.158 | ˂0.001** |
| Rhinitis (G2) | 1105.833 ± 174.852 | 1748.333 ± 256.431 | −10.908 | ˂0.001** |
| Bronchial asthma (G3) | 938.857 ± 123.180 | 1498.714 ± 227.014 | −10.530 | ˂0.001** |