Itchy red bumps after taking a seawater bath are considered to be a case of contact dermatitis, and it is recommended to go to the hospital in time to clarify the cause of the disease, and the treatment includes medication. In general, contact-related diseases that cause itching and pimples are called contact dermatitis. If the patient is exposed to some allergens contained in seawater when taking a seawater bath, an allergic reaction may be triggered, leading to the occurrence of contact dermatitis. Contact dermatitis patients should avoid contact with allergic substances to avoid aggravating the allergic reaction. Depending on the patient’s specific situation, the doctor will use oral or topical medication to treat the disease. Oral medications include antihistamines such as cetirizine and ebastine. Topical medications include glycerite lotion, zinc oxide cream, glucocorticosteroids, and so on. Patients usually need to develop good living habits, maintain optimistic mood, regular physical exercise, etc., which can help improve immunity, enhance the ability to resist allergies, and reduce the threshold for allergies. If you feel unwell, you should go to the hospital in time, so as not to delay the condition or cause adverse reactions.