In allergies, the immune system reacts to environmental stimuli that are normally harmless. Typical complaints are, for example, a runny nose, itching or watery eyes. Many people affected wish to alleviate their allergy complaints naturally. Certain plants such as evening primrose and black cumin may help to gently relieve these complaints. As well-tolerated natural products, they are helpful in case of itching and reddening of the skin, for example.