<s>[INST] sir my sister suffer from high fever within 3 months. high fever means 105 F approx or some time more than this. This fever attack her at morning time generally. But when we give her medicine than fever become fall down. Kindly inform me that what i have to do? [/INST] Hi Dear, Welcome to Chat Doctor. Understanding your concern. As per your query your sister is suffering from persistent high fever which seems to be due to viral or bacterial infection. It could be due to urinary tract infection. Need not worry. You should maintain complete hygiene. You should do tepid sponging t o lower down fever. I would suggest you to visit general physician once and get it examined. You should get blood tests redone and start treatment after proper diagnosis. Take diet rich in fresh juices and fruits.  Chat Doctor.  You should take anti-allergic medication along with proper course of antibiotic along with Ibuprofen. Avoid intake of outside food. Hope your concern has been resolved. Get Well Soon. Best Wishes, </s>