We couldn’t find any reliable reports of CBD oil causing itchy eyes, but that does not mean it is impossible. Let us know in the comments at the end of the article if you have experienced this.
Red eyes are the result of THC causing the blood vessels to relax and widen. Many believe that, for the same reason, marijuana could be a useful glaucoma treatment.
The 2019 report suggests that there were at least two cases of rashes and itching after using CBD oil. One patient took CBD orally and experienced urticaria, a severe skin reaction involving red welts, swelling, and intense itching. Another used CBD both orally and topically, and also experienced itching.
Can CBD Oil Cause Itchy Eyes?
Although some people have experienced itching after using CBD oil, this reaction only affects a minority of users. In fact, some research suggests that CBD could offer a solution to itching in skin conditions such as psoriasis and dermatitis.
A 2006 study for the German journal Der Hautarzt tested a compound called N-palmitoyl ethanolamine (PEA) in 22 patients with itching due to various skin conditions. The chemical is a cannabinoid agonist, meaning that it stimulates receptors in the ECS. Of the 22 participants, 14 experienced reductions in itching. The average reduction was an impressive 86.4%.
Anaphylaxis, or anaphylactic shock, is an extreme allergic reaction. It results in swelling of the airways, inability to breathe, and can potentially be fatal. Other cannabis allergy symptoms include:
Can CBD Oil Cause a Skin Rash?
It seems that CBD oil may cause itching in a small number of consumers. This reaction is most likely the result of a CBD allergy or sensitivity to other ingredients in the product. The latter could be especially true when using topical CBD products as these contain a variety of components that could potentially irritate the skin.
Since CBD comes from cannabis plants, it is reasonable to assume that those with cannabis allergies could also be sensitive to CBD. However, more research is necessary to confirm how many people are allergic to CBD oil, and to what extent.
According to the Asthma and Allergy Foundation of America, allergies are the sixth leading cause of chronic illness in the US. There were 19.2 million adults diagnosed with hay fever in 2021, according to the Centers for Disease Control and Prevention (CDC). It is estimated that 32 million Americans live with food allergies; more than 170 foods may lead to an allergic reaction.
Humans commonly experience allergic reactions to many kinds of plant pollen. However, only male cannabis plants produce pollen, whereas female plants are more widely used for oil and cannabinoid production. Large-scale industrial hemp fields may include a variety of mature males (pollen) as well as fertilized females (oil and seeds). The impact of hemp pollen on everyday consumers, as well as the communities that work and live near these production facilities, has not been studied.
Allergies in the body
People can also develop allergies to some of the terpenes found in cannabis. For instance, researchers from the Duke University School of Medicine found that about 20% of the 100 people they tested had an allergic skin reaction to linalool, whereas 8% had reactions to limonene. These kinds of contact allergies may not be common in the general population, but anyone with these allergies working in the cannabis production industry could have health consequences.