Girls, hello! I have a question for moms of boys). My son is 2.5 months…

Girls, hello! I have a question for moms of boys). My son is 2.5 months old. We have a small problem - the penis has reddened, because of this I even changed diapers. Before we wore Huggies Elite, I switched to Bebe. And now on the tip of the penis there are strips, is it supposed to be like that or is it a crack? I can't understand. The doctor didn't say anything about it, he said to open the extreme skin and wash with soap and apply oil. But then we have white lumps. I don't know what to do, I just read everywhere that you shouldn't touch it (( Diapers are not worn for long time, mostly sleeps