• Contrast bath---It is a form of treatment where a limb or the entire body is immersed in warm water followed by the immediate immersion of the limb or body in ice water. This procedure is repeated several times, alternating hot and cold. Note that the treatment should always end in the ice water, as heat will induce the body's inflammatory response, while cold helps to decrease inflammation.

You need further evaluation. Consult orthopaedic doctor. It may be tennis or golfer elbow or muscle strain

Needs clinical examination for diagnosing the condition. Looks like arising from the musculotendinous unit.