Note the presence of a confluent, erythematous eruption that is not only in a photodistribution but is now on the breasts and upper abdomen. Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Chloroquine sulphate for rheumatoid arthritis Drug reaction with acyclovir and sucralfate and hydroxychloroquine Get emergency medical help if you have signs of an allergic reaction hives; difficulty breathing; swelling of your face, lips, tongue, or throat. If you have an allergy to hydroxychloroquine or any other part of this drug. If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had. If you have had any eye changes or changes in eyesight due to this drug or drugs like this one. If you have. Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. This medicine is not effective against all strains of malaria. Malaria is common in areas such as Africa, South America, and Southern Asia. Allergy signs to hydroxychloroquine Hydroxychloroquine toxicity - EyeWiki, Hydroxychloroquine Memorial Sloan Kettering Cancer Center Does plaquenil cause tinnitusDangers of plaquenilHydroxychloroquine dose in sleHow does chloroquine work at the cellular level Doctors give unbiased, trusted information on whether Hydroxychloroquine can cause or treat Allergies Dr. Goldman on plaquenil allergy signs The most common symptom of a plaquenil allergy is a rash. Plaquenil allergy signs - Answers on HealthTap. Hydroxychloroquine Oral Uses, Side Effects, Interactions, Pictures.. Hydroxychloroquine sulfate allergy signs - Answers on HealthTap. Jul 24, 2018 The malaria medication hydroxychloroquine Plaquenil may ease the symptoms of some types of sun allergies. Therapy. If you have a severe sun allergy, your doctor might suggest gradually getting your skin used to sunlight each spring. Learn about allergy symptoms and signs and the medications used in treatment. Common symptoms and signs include runny nose, coughing, rash, or hives. Pinpoint your symptoms and signs with MedicineNet's Symptom Checker. Abstract. Background The American Academy of Ophthalmology recommendations on screening for chloroquine CQ and hydroxychloroquine HCQ retinopathy are revised in light of new information about the prevalence of toxicity, risk factors, fundus distribution, and effectiveness of screening tools.