Coronary groove is the coronary groove, male coronary groove old crack, usually with external stimulation, fungal infection, bacterial infection and other factors, can be combined with different causes of general treatment, drug treatment and other methods to alleviate the symptoms. 1. External stimulation: for example, excessive activity or long-term masturbation, repeated stimulation of the local easy to cause chapped coronary groove. Should improve the bad habits as soon as possible, adhere to the warm water cleaning, and then apply erythromycin ointment. 2. Fungal infection: and usually do not pay attention to hygiene, repeated stimulation by fungi, easy to cause chapped, glans secretion will increase significantly. You should insist on washing with sodium bicarbonate solution and then applying miconazole ointment. 3. Bacterial infection: cleaning is not in place, or the foreskin is too long, easy to cause bacterial infection resulting in coronal groove ulceration. Should adhere to the boric acid solution cleaning, or with iodophor solution scrub local, and then topical erythromycin ointment, mupirocin cream and other drugs to relieve. Men’s coronal groove is always cracked, short-term sexual intercourse should be prohibited, so as not to repeatedly stimulate the localization leading to crack enlargement. If you need to use medication for severe symptoms, you must do it under the guidance of a professional physician.