A red blister on the glans?Or what?It hurts a little to touch it with your hand. What's going on? The last half month, no sex.
Through your description and the pictures you sent, such symptoms should be local infection, you can temporarily use a cotton swab with iodophor to wipe the affected area every day, wipe 2 to 3 times a day, under normal circumstances about a week will be able to return to normal
The actual fact is that you can find a lot of people who have been in the business for a long time.If you can, I think you'd better pay attention to take a look, and then targeted to give him a little adjustment and treatment in this regard, to see how his current situation.
You should consider this related to wear and tear, currently look at the surface of this or no signs of infection, my advice is that you can use iodophor disinfection, disinfection once a day, as much as possible to dry, do not get wet.Don't eat spicy food during treatment.