If a localized mass or hard nodule remains after wheal surgery, two causes are usually considered. The first, within a short period of time after surgery, such as less than a week, this condition may be caused by a local reaction, such as localized tissue growth or swelling. In this case, it is recommended to continue conservative treatment, local use of antibiotic eye drops to control inflammation, and give hot compresses, many people after slowly anti-inflammatory, the symptoms will gradually improve and return to normal. The second, that the disease may recur, or in the operation did not completely remove the pus, residual part. In this case, it is recommended that you need to go to the hospital as soon as possible for examination, and if necessary, you may need a second operation. So after this situation, the first thing to do is to go to the regular hospital to check, clear the cause of the disease and then choose the correct treatment program, do not blindly use drugs.