My partner has been experiencing pain in one knee for over 3 weeks and the pain is increasing. They didn't hit their knee on anything. What could it be and what should they do?

It is recommended that you seek the attention of a physiotherapist for the knee pain your partner is experiencing. A physiotherapist can provide a precise diagnosis and appropriate treatment options. Applying Voltaren Emulgel may provide temporary relief, but it is important not to delay seeking professional medical care.