The reaction can be phototoxic and/or photoallergic. Phototoxic reactions result from direct damage to tissue caused by light activation of the photosensitising agent, whilst photoallergic reactions are a cell-mediated immune response in which the is the light-activated photosensitising agent. Do you need to stop hydroxychloroquine before surgery Chloroquine brand Drug photosensitivity is caused by a phototoxic or photoallergic reaction to certain medications and sunlight. Symptoms include burning, itching, stinging, redness, blisters, and swelling of the affected areas. The reaction can be phototoxic and/or photoallergic. Phototoxic reactions result from direct damage to tissue caused by light activation of the photosensitising agent, whilst photoallergic reactions are a cell-mediated immune response in which the antigen is the light-activated photosensitising agent. There are two types of reactions that can increase our sensitivity to the sun. One is called Photoallergic. The other is called a Phototoxic reaction. Both require the combination of medicines and sunlight to occur. Phototoxic reaction happens when the drug is activated by the sun’s rays and the skin is damaged. This often looks like a sunburn. Although some oral photosensitising medications can cause photoallergic reactions, most cause phototoxic reactions. Photoallergic reactions occur less commonly than phototoxic reactions and are mostly caused by photosensitising topical agents. Phototoxic reaction to plaquenil Will you have Photosensitivity reaction with Plaquenil - eHealthMe, Drug-induced photosensitivity DermNet NZ Bloodshot eyes plaquenilPlaquenil testing aao It has been shown that an increase in inspired oxygen markedly enhances retinal phototoxicity and so a low inspired oxygen concentration was used for the patient during the procedure. 1, 3 The patient discontinued hydroxychloroquine treatment following the surgery to her left eye but ophthalmologists should be aware of the risk of phototoxic retinal lesions in patients taking photosensitising pharmacological agents particularly for underlying potential photosensitising systemic conditions. Phototoxic maculopathy following uneventful cataract surgery.. Migraine Medications and the Risk of Sun Sensitivity A List. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. This reaction is called phytophotodermatitis. All phototoxic reactions appear only on areas of skin that have been exposed to the sun. They usually develop within hours after sun exposure. In photoallergy, an allergic reaction causes redness, scaling, itching, and sometimes blisters and spots that resemble hives. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Apr 10, 2019 Plaquenil side effects. Get emergency medical help if you have signs of an allergic reaction to Plaquenil hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye.