Severe pain in left shoulder

One of the reasons why it is not possible for those working online to work on their computer continuously is that the hands , elbows and shoulders start aching if they are typing for a long period of time. In particular, if the keyboard is pressed hard repeatedly, the pain can be very severe, making it difficult to do any kind of work.
Most of the many pain relief balms and sprays are only giving temperorary relief for the pain, and the balm applied to the shoulder is soon rubbed off, and spreads to the clothes, reducing the impact of the pain.
In some cases, the pain is so severe that the patient is unable to sleep at night
any individual or company offering a product which can reduce the sharp pain in the shoulder can send their details to