I have a problem at one of my leg my nail since 8...

What is the appropriate treatment of your condition?
First of all, it's recommended to visit the internist doctor to assess your condtion. From your discription, it seems that you have gout, which is a condition that mainly affect the big toe of the foot and other joints as well. It's treated by following a specific life style which include avoiding different kinds of food that have high levels of uric acid such as beef, sea food and juices contain fructose. Secondly, by using medication to lower the level of uric acid such as Allopurinol between attacks. During the attack, the best medication to be used is NSAIDs such as indomethacin. Furthermore, you should drink a plenty of water in an average of 3 litre per day.

How to diagnose gout ?
History and physcial examination. Complete blood count, uric acid level measurement, X-ray and CT scan to the joint and joint aspiration.

Symptoms of gout:
It's characterized by sudden onset of severe attacks of pain, swelling, redness and tenderness in the joints, often the joint at the base of the big toe.

Recommendation:
It's recommended to visit the internist or family doctor for further assessment of your condition.