It is very common to have lingering body and joint pain after suspected Chikungunya, which can last for weeks. Since the pain returned, please consult her doctor to confirm the diagnosis. For safe pain relief in the meantime, she can take Paracetamol. Avoid other pain relievers like Ibuprofen until a doctor rules out Dengue, as they can pose risks if platelets are low. Additionally, ensure she gets plenty of rest, stays well-hydrated, and uses warm compresses on painful joints. Please do not worry; this post-viral joint pain is highly treatable and gradually subsides with proper medical guidance.