My son has had both a yeast infection when he was about 2 years old (from a summer spent in wet swim diapers) which cleared up quickly once we started treating it. But, it did take a little longer than the 7 day treatment, more like 10 days.
Then, when he was around 4 he developed recurrent UTIs. I searched high and low for an intact friendly urologist. Our ped treated the UTI a few of times but after yet another round of antibiotics and a fourth culture came back showing the infection she sent us to her regular urologist. I was scared to take him so I first went to our family doc. He was surprised he was intact and immediately suggested circ. I told him "that's not an option." He looked at me like I had two heads and then hemmed and hawed around "well, I don't know your reasons but, blah, blah, blah." So, I contacted Docs Opposing and they didn't know of anyone in our area. I talked to Marilyn and she was supportive but didn't know anyone in our area either. I heard of one in a town close to us but when I called they said he wouldn't see our son unless he had had a kidney reflux test (can't remember the name but it included inserting a cath, filling the bladder with dye, etc.). I wasn't going to put my son through the test until I had actually talked to someone. So, I made the appt with the urologist our ped suggested. It actually wasn't as bad as I had expected. I posted on here about the issues and someone suggested a certain antibiotic for the e-coli bacteria found in the cultures. The doc and I talked about it and he agreed trying a longer course of this antibiotic would be worth a shot. He didn't jump right to circ but he did say that one of the reasons they circ in Europe was for recurrent UTIs. Not sure why he brought up Europe and some of the other info he shared sounded weird to me so I took it with a grain of salt. He did say one thing that I agreed with - he said if you circ and it doesn't clear up the infections it's not like you can put the foreskin back on. Um, yes sir! So, I used the same line that "circ isn't an option" and he at least didn't look at me like I was an alien.
He did manipulate my son's foreskin a little but was not alarmed that he wasn't fully retractable and he didn't force it. He didn't ask anything about cleaning it or retraction. He just took a quick glance.
So, during this new treatment of antibiotics we figured out that our son, who was learning to wipe his own bottom, would wipe and then dab the tip of his penis with the paper. He was reinfecting himself. We explained what was happening when he did that and he stopped and the infection hasn't come back. Who knew you'd have to have a similar talk with our boys as with our girls (the "wipe from front to back" talk).
All of that background to say I know how hard it can be to stand up to the pressure from docs. I would totally agree with seeking another opinion. And, even if you can't find an intact friendly doc you know that the infection has cleared up. I would take the wait and see approach. If the infection comes back it can be treated. There are plenty of comfort measures to use until antibiotics kick in. I remember with our son's yeast infection the swelling was such a surprise and he was very uncomfortable when he would pee. It can be alarming but warm baths helped a lot.
Stick to your guns and go with your gut instinct that he is fine and will be fine. I'd stop the cream, too. I'd leave well enough alone. If he develops another infection I'd get a culture to figure out what bacteria is causing it and then treat it. I would go with the odds that he won't get another one. And, even if he does, you can treat the new infection and go back to wait and see again. After months of the whole UTI drama and driving ourselves nuts with worry about what was causing it, and plenty of worry about what the docs would suggest to "fix" it we took it one day at a time. Now two years later our son is still whole and infection free. All of the hassle was worth it.