The discomfort at the back of your thigh may be related to the sciatic nerve or nearby muscle tension. For temporary relief, you can apply over-the-counter topical ointments such as diclofenac gel to reduce inflammation, or lidocaine creams and patches to numb the localized pain. Menthol-based cooling gels can also help. For oral relief, over-the-counter medications like ibuprofen or acetaminophen can be effective. Applying a warm compress and doing gentle stretching may also ease the discomfort. If the pain worsens, spreads, or is accompanied by numbness or weakness in your leg, please consult a healthcare professional for a tailored evaluation.