If the bulge occurs with the infusion of common fluid and the bulge is relatively small, there is no need to worry too much at this time and local pressure can be applied to reduce bleeding. At the same time, with the extension of time, the fluid leaking from the blood vessels can be gradually absorbed by the body. If the bulge is large, you can apply local heat or physical therapy to help the absorption of the bulge. However, if the bulge is caused by a special drug infusion, such as chemotherapy drugs. This may require the use of a puncture needle to draw the fluid out of the body, as well as local closure with lidocaine and sometimes topical application of specialized medications to reduce skin and tissue irritation. During the recovery period, try not to knead the area vigorously, as this may lead to aggravation of the condition, and also do not use some special medications to apply topically to prevent delaying the condition.