Antibiotic ointments may help. Signs if infection are redness, being sore, tender, or numb around the wound. Discharge is also a sign.

I would highly recommend going to your doctor or ER. They should keep you or restrain you, unless you are a danger to yourself. They may urge you to seek help from a mental health person, but can't force you unless the doctor has reasonable belief you or someone else is in danger. TmilIf they believe that they may have a psychaitrist evaluate you.

Infections are better catch early then deal with them later. It could start to spread and may become so infectedd that they have to amputate to prevent the infection from spreading to vital organs.