Why is my thigh aching after using pain relief?

It sounds like you have a muscle tear in your calf muscle. This can happen if you overdo it on your muscles or damage them. You may experience symptoms like pain, swelling, and difficulty in leg movement. It is necessary to let your leg rest, apply ice and elevate it to speed up healing. Gentle stretching and physical therapy can also be effective healing methods. Stick to your doctor's recommendations and you are sure to make a complete recovery.

Looks like you're suffering from a lot of backache. Even though Lyrica and Neurontin kinds of drugs are being taken, back pain may worsen, and this may be a brand new problem or the deterioration of what used to be. You have to meet your doctor for a check-up to diagnose the cause of the recurrent pain. Sometimes, it is necessary to change your meds or use additional treatments to reduce the pain as much as possible. 

Swelling in your leg can occur due to the injury. It is your body's way of safeguarding itself. If the swelling does not subside, try elevated rest, ice pack application, and wear a compression bandage. These measures can help you swell less and thus, ease your pain and make your exam successful. 

If you ste­p on a nail, wash the spot with soap and water right away. This cleans the­ cut. Then put a new bandage on it. Che­ck the cut every day. Look for signs of infe­ction. That can mean redness, fe­eling hot, or pus coming out. If you see those­ things, go to the doctor fast. They can give you me­dicine to keep the­ infection from getting worse.