Homeopathic allergy remedies include natural supplements and herbs such as butterbur to reduce swelling in the nasal passages, quercetin to stabilize cells and block the release of histamines, and stinging nettle, which contains vitamin K, carotene and quercetin, according to WebMD. Bromelain can be helpful in thinning mucus and reducing nasal swelling, and phleum pratense may help to decrease the effects of hay fever and eye irritation causes by allergies.
Homeopathic herbal supplements used to remedy allergies also include echinacea, pine bark extract, honey, cat's claw and grapeseed extract, explains WebMD. A blend of botanicals such as cowslip, verbena, gentian root and the European elderflower may help to treat sinusitis that results from allergies. Some patients also opt to use the herbal tablet tinospora cordifolia to reduce nasal discharge, itching and sneezing.
People seeking to remedy allergies with homeopathic remedies and natural supplements should consult with a physician prior to use, warns WebMD. Allergy supplements are often deemed reasonably safe, but patients who are taking daily medication, possess medical conditions or are pregnant or breast-feeding may run the risk of complications or interactions associated with taking natural supplements. Long-term use may also pose risks for people who suffer from allergies and allergic reactions.