Hello. Thanks for writing to us at healthcaremagic I would keep a possibility of Fixed Drug Eruption(FDE). Fixed drug eruption, as the name indicates, the eruption is fixed in its location i.e intake of the incriminating drug causes it to either Or become prominent at exactly the same spot. A lot of drugs can cause this kind of eruption e.g commonly used pain killers/antipyretics, antibiotics etc which are commonly prescribed for cold, flu, diarrhea/dysentry etc cause most of the cases of FDE. Carefully checking the history will usually help to identify the culprit drug, which should be avoided. In your case it could very well be one of the drugs you take during malarial fever. e.g either an antipyretic or antiprotozoal. If I was the treating doctor I would have asked you to use a moderately potent topical steroid e.g mometasone furoate 0.1% twice daily. It is a prescription steroid and I would suggest that you visit a dermatologist for a confirmatory diagnosis as well as a prescription. Regards