Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Hydroxychloroquine 200 mg dosage Plaquenil vector Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Porphyria cutanea tarda usually affects adults who are older than 30. It’s a blood disorder that mostly affects the skin. Your skin may be more sensitive to the sun, so you may need to take. I got this after about 5 weeks, mine was a blistery rash and it was only on my shoulders, upper chest and upper back. My doctor said it was photodermatitis and caused from a sensitivity to the sun caused by the plaquenil. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Plaquenil rash images Plaquenil rash or something else? Lupus Forums at The Lupus., Porphyria Cutanea Tarda Pictures, Treatment, and More Can chloroquine go through skinPlaquenil are trying to not have people take itWhy is chloroquine used to treat lupus Rheumatoid arthritis RA mainly affects the joints. But it, and many of the medications that treat it, can also affect the you recognize any of these problems? Rheumatoid Nodules. About 1. Rheumatoid Arthritis Skin Problems Nodules, Rashes, and More. Rash from plaquenil DailyStrength. Hydroxychloroquine sulfate Pill Images - What does Hydroxychloroquine.. Hi Irene, You poor thing! The rash you are describing certainly sounds like an allergic reaction. If you didn't have this type of reaction the first time around with plaquenil I'm guessing it isn't the culprit this time and may just be coincidental. Rashes that are associated with purpura blood spots can represent vasculitis, an inflammation of the blood vessels. Although these rashes are not as common as the ones discussed above, they are important to recognize in Sjögren’s patients and should be seen quickly by a dermatologist. Natalie Wright, MD, FAAD What is Plaquenil? Plaquenil hydroxychloroquine is a medication most known for its original purpose of treating or preventing malaria, a disease caused by parasites that enter the body through the bite of a mosquito.