When the eardrum is scalded by welding slag, you should consult a doctor in time, and usually need to take out the welding slag, medication, surgery and other treatments. 1. Remove the welding slag: after the welding slag burns through the eardrum, you need to remove the welding slag in time, so as not to further aggravate the damage to the ear. 2. medication: welding slag scalded eardrum due to local congestion, edema need to take antibiotics anti-infection treatment, so as not to cause infection, commonly used drugs are cephalosporin antibiotics, penicillin, etc.; can also be cleaned up through the local application of hydrogen peroxide in the external auditory canal, and the use of antibiotic ear drops, such as oxfloxacin ear drops, rifampicin drops, etc.. 3. Surgery: If the eardrum perforation is more serious, or the conservative treatment has no effect, there is a need for timely surgical treatment, such as common tympanic membrane repair surgery. After the eardrum is perforated by welding slag, you need to go to the hospital in time to avoid delaying the condition.