Key points

• Only a few RCTs have been conducted on systemic agents. In particular, no RCTs have tested doxycycline, clarithromycin or azithromycin.

• Many RCTs have been performed with topical drugs. In particular, metronidazole has been extensively and thoroughly studied.

• All the drugs examined, except rimelnidine, were found to be effective.

• Side-effects were surprisingly minimal, even for drugs such as tretinoin and benzoyl peroxide that are well-known irritants.

• In most studies, a high rate of response to placebo was found.

• The majority of RCTs have been directly supported by the manufacturer of the drug tested.

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Natural Treatments For Psoriasis

Natural Treatments For Psoriasis

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