Your aunt's morning heel pain is very common and is often caused by plantar fasciitis, which is inflammation of the tissue under the foot. For relief, she can use over-the-counter anti-inflammatory medications like ibuprofen or naproxen to reduce pain and swelling. Applying a topical diclofenac gel directly to the heel can also help. Additionally, she should gently stretch her calves and foot arches before getting out of bed, apply ice for 15 minutes, and wear supportive footwear. If the pain persists, it is best to consult a healthcare professional for a proper evaluation.