my 2 1/2 year old son has about 3 bumps on his butt and have been there for about 2 weeks they are very painful it does not look like a diaper rash ...he had one on his tummy which i popped after a bath and it left a mark but its gone..they are red with white head and looks like a dimple in middle and hard i need them gone what should i do ...read online might be a staph infection ...i need help
Hello and Welcome to Ask A Doctor service. I have reviewed your query and here is my advice.  I am a pediatrician and will be glad to help. Yes, his rash could be impetigo which is a superficial skin infection. You are correct. In the USA, it is most often due to Staph. Treatment is a topical antibacterial ointment such as Mupirocin.  Applied three times a day for 5-7 days.  You should be able to get this in the pharmacy over-the-counter. Hope I have answered your query. Let me know if I can assist you further.