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. Plaquenil therapy lupus Figuring hydroxychloroquine dossage Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Sep 05, 2016 My doc has prescribed a cream--it doesn't work. I have tried all the stuff you can buy over the counter and found that Scalpicin works as well or better than most. It is made for itchy scalp, so you can find it in the hair care section near the dandruff treatments. It is a hydrocortisone 1% liquid in an alcohol base. May 28, 2009 PLEASE HELP! I have been on Plaquenil well the generic form-- hydroxychloroquine since October, and for the past about 2 weeks, I have been SEVERELY skin turns red, and it feels like something is biting me. 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. Scalp itching and plaquenil Scabs and Sores on Scalp Treatment, Causes, and Remedies, Itching - General - Sjogren's Syndrome Support Black cohosh and plaquenil Find information about common, infrequent and rare side effects of Plaquenil Oral. Common and Rare Side Effects for Plaquenil Oral. Plaquenil and SEVERELY ITCHY SKIN! PLZ HELPPP. - Inspire. Immune & Autoimmune - Lupus Hydroxychloroquine and itchy skin. Note This document contains side effect information about hydroxychloroquine. Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. What Is Plaquenil? Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form. What Are Side Effects of Plaquenil? Itchy Scalp Causes & Symptoms 1. Dandruff and Seborrheic Dermatitis. Dandruff and seborrheic dermatitis are the most common when it comes to itchy scalp causes. Itching and flaking are how the body responds to the the inflammation of the overgrowth of yeast. Yeast is typically found on the scalp and other areas of the body where more hair is.