Bathing knocked the head the next day ear pain and redness and swelling is mostly not related to head irritation, there may be ear diseases, common diseases are acute diffuse otitis externa, external auditory canal boils, folliculitis and other diseases.
1. Acute diffuse otitis externa: a diffuse acute infection of the skin of the external auditory canal. Its symptoms are similar to boils, with a burning sensation and mild pain in the ear at the beginning of the disease. As the disease progresses, the pain gradually intensifies and even worsens when sitting or lying down, chewing or talking. The appearance of ear pain, redness and swelling can be seen.
2. External auditory canal boil: acute purulent inflammation of the deep follicles and surrounding tissues, often induced by Staphylococcus aureus. The skin lesions at the beginning of the follicular inflammatory papules, basal infiltration is obvious, after the inflammation to the surrounding expansion, the formation of hard nodules, accompanied by redness, swelling and heat pain, that is, the symptoms of earache redness and swelling.
3. Folliculitis: this disease is mostly caused by coagulase-positive Staphylococcus aureus infection, occasionally for Staphylococcus epidermidis, Streptococcus, Pseudomonas spp., Escherichia coli and other individual or mixed infections, but also by fungal folliculitis (e.g., Malassezia furfur) secondary to bacterial infection. There may be painful redness and swelling of the ear skin.
Bathing knocked the head the next day ear pain red swelling can go to the hospital, systematic examination after a clear diagnosis.