i have read that cannabis can have effects on suppressing the immune system
which may be good for things like psoriasis
but on the other hand increases the risk of certain types of cancers
Perhaps if it is smoked, then the risk of cancer rises, but there are several ways (other than smoking it ) to ingest it. You're always gonna get the ' your doctor prescribed this med because he/she feels the benefits outweigh the risk...' disclaimer included in the little pamphlet that accompanies a lot of prescriptions.
One of the current meds for psoriasis is Enbrel & this is the info on side effects with that:
Enbrel Side Effects Center
Charles Patrick Davis, MD, PhD
Enbrel in Detail with Side Effects
Last reviewed on RxList 2/20/2015
Enbrel (etanercept) is a tumor necrosis factor inhibitor used to treat certain autoimmune disorders such as rheumatoid arthritis, juvenile idiopathic arthritis, ankylosing spondylitis, and plaque psoriasis. There is no generic Enbrel available currently.
Side effects of Enbrel include mild nausea, vomiting, diarrhea, stomach pain, headache, redness or discomfort at the injection site, heartburn, weight changes, cold symptoms (cough, runny nose) and weakness.
Serious side effects include seizures, bruising or bleeding, skin changes (rash, pustules or blisters), swelling, difficulty breathing or swallowing, paresthesia, vision changes, weakness and/or dizziness....
Warnings are given for Enbrel use;
Enbrel users are at increased risk for developing serious infections that may lead to hospitalization or death and for the development of lymphoma and other malignancies and death in children and adolescent patients treated with TNF blockers, including Enbrel. Patients receiving cyclophosphamide therapy are not recommended to use Enbrel and patients should not obtain any live vaccine while taking Enbrel. There are no studies available on Enbrel use in pregnant or breastfeeding women or their infants.
Side Effects of Enbrel (Etanercept) Drug Center - RxList