is more sensitive now and has a few red marks. The stinging during urination near the tip of my penis is also still happening. But I do not have any signs of secretions or bladder infection. I'm monogamous and my girlfriend's annual tests are all ok. Do I have a skin infection? A bad reaction to the lotion? Please advise.
You could be having urinary tract infection, allergic reaction to the lotion or some other conditions such as eczema , dermatitis , etc, which could be the cause of your symptoms.
It would be best to consult your doctor for a clinical examination and to come to a definite diagnosis.
Till then you should drink plenty of water, take some oral antihistamine medications if the itching is severe, maintain good personal hygiene, wash all your clothes in chlorhexidine and dry them nicely.
Let us know what your doctor advises and post us if you need any other information.