People can have allergic reactions triggered by marijuana, just as they can with many other plants and pollens. Symptoms can vary from mild to severe.

In recent years, there seems to have been an increase in the number of reports of marijuana allergies. This may be because marijuana, or cannabis, is becoming more popular as a medicinal treatment for a range of conditions. Some states have also legalized the drug for recreational use.

Cannabidiol, or CBD oil, can also cause negative reactions in some people.

Read on to learn more about Cannabis Allergies & Symptoms as well as its possible causes.

A person who is allergic to marijuana should expect symptoms similar to those that are present in pollen allergies, i.e. rashes, hives, runny nose, and wheezing. Such reactions were identified in a 2012 study published in The Journal of Allergy and Clinical Immunology which identified cannabis as an allergen. A group of 17 patients underwent skin-prick tests using a marijuana extract. Unsurprisingly, all subjects showed adverse skin reactions. Since marijuana is a plant, people who are allergic to it are very likely to be prone to other pollen producing plants, too.


At present, no treatment is available for a marijuana allergy. A person can take antihistamines to manage symptoms and reduce discomfort. Antihistamines are available for purchase online.

For some types of pollen allergy, a course of allergy shots is prescribed to reduce a person’s sensitization to the substance. But these are not currently available for marijuana pollen.

Because of the lack of treatment options, those who are allergic to marijuana should avoid smoking, eating, or touching the plant or the drug to prevent allergy symptoms.

If a person has a severe allergy to marijuana, they should carry an epinephrine injection (Adrenaclick, Epipen, or others) in case of accidental exposure and subsequent anaphylaxis.

If you think you’re allergic to weed, you ought to make an appointment with an allergy specialist in the first place. Should the doctor confirm your fears, the best thing you can do to yourself is, unfortunately, avoid the allergen. Although other pollen allergies can be treated and eventually overcome by strengthening your immune system with a series of inoculations, there is no allergy shot for weed yet. The good news is that cannabis allergies are being discussed on a broader scale nowadays, and the medical community will, sooner or later, find the right treatment for this condition.