Seroma Under the Armpit, What Treatment is Best when Draining is Not Work? Who Are the Best Doctors for Treatment? (photo)

My daughter just had her baby. While pregant she developed fat tiss.Two weeks after giving birth my daughter had surgery to remove excess breast tissue. They removed breast tissue and enlarged lymph node. All were benign. Now she is experiencing seroma and pain. The doctor has drained the fluids three times. Each time within a hours, the fluid returns and extra pain. The Seroma appears to look like a breast under her armpit. We need a second opinion on what treatment is best for my daughter.