Over a day or two they got worse and then eventually started healing up. There are now small dime-sized bruises where they were. Plaquenil skin rash side effects Plaquenil radiation therapy Painfully Itchy Welts on Back of Thighs and Buttocks lcook3709 About 2-3 weeks ago I had what appeared to be really big spider or mosquito bites on my inner and back thighs. The rash on the buttocks results from contact with such irritants. It leads to severe and uncontrollable itching. At times there could be oozing and redness. The commonest irritants are scented soaps, perfumes etc. Symptoms of Butt Rash. There are many symptoms that are found associated with a rash on the buttock. The rash on inner thighs may also happen due to contact with poisonous component found in herbs like poison oak or ivy, or present in the insect’s sting or animal’s bite. For instance, tick’s bite can cause Lyme disease that first forms a round shaped wound and then turns into rashes. However, last night I started to develop them again... One leg has ones similar to the above mentioned (dime sized, all over, red, no puss, no center marker (of a bug bite)). I assumed that while I was camping I got, because the woods was my bathroom. Hives on my buttocks and thighs plaquenil Buttock Rash 9 Causes and Treatments MD-, Rash on Buttocks BUTT RASH Pictures,Causes,Symptoms. Sar of chloroquineBenefits of plaquenil and rheumatoid arthritisChloroquine drug actionPlaquenil long termFluorescein angiography and hydroxychloroquine maculopathy screening Aug 08, 2018 8. Eczema rash on butt. Having a rash on the buttocks could be a sign of eczema. Also known as atopic dermatitis, eczema is a chronic skin condition characterized by itchy and blistering rash on the affected skin of your buttocks. The condition appear as early as infancy. It can also affect adults as well. Rash on Buttocks Causes, Symptoms, Pictures, Treatment, How.. Rash on Inner Thighs - Causes, Pictures and Treatment.. Rash on inner thigh and near buttocks - Dermatology - MedHelp. I am interested to see if anyone here has gotten a rash from Plaquenil after being on it for several months. I have been getting these horrible rashes and they are not related to sun exposure. I am starting to wonder if they are related to Plaquenil. My doctor now wants me to start on Chloroquine instead of plaquenil. Fungal rash on buttocks. A fungal infection on buttocks is a very common infection among people. This condition affects people regardless of age and gender. A fungal rush will most likely be accompanied by symptoms such as severe itching, a painful and annoying rash and rare cases painful blister on buttocks and on the inner thighs. Hives appear as "wheals" swellings on the skin, sometimes pink or red and surrounded by a red blotch. Typically round or oval, hives often itch. Hives vary in size, and some may blend to form larger areas of swelling. Hives can affect skin on any area of the body, especially the trunk, thighs, upper arms and face.