Slight red rash on top of penis for about a month. Comes and goes, sometimes even throughout the day. Also notice some blotchy whitening . Been using anti fungal cream for two weeks but not gone.
What you are describing - as the images you have also posted do not really show what your are talking about - suggests that you either have irritation going on, and is therefore dermatological, or, you have the beginnings of a skin disease such as some type of Balanitis. Unfortunately, until the condition worsens you are unlikely to achieve a fully accurate diagnosis - other than a Biopsy, and this may be completely unnecessary if you merely have a relatively simple cause to an irritation. In the mean time, here is how you can help yourself: -
> The best approach is not to use ANY SOAP on the Glans (head of the penis) - wash with water only EVERY time you have urinated, after sexual arousal, and ejaculation. If you are not circumcised, protect the Glans of your penis every time you take a shower by drawing the foreskin as far forward as you can, then wash everywhere else, thoroughly rinse off all the gels / shampoo and suchlike, then expose your glans wash it with the water only, then each time you have washed it you must make sure it is 100% dry immediately afterwards.
After you have put this in place and you still have the situation going on you need to look at what else your penis is coming into contact with on a fairly regular basis. The likely suspects are:-
> any chemical compounds such as skin cream / lotions, baby oil, oil based lubes, chemicals inside condoms (e.g. easy-on and spermicides) - you need to exclude these one by one to discover the culprit
> if non of these make any difference you need to look to things such as washing powder in which you wash your clothes, and underwear in, in particular. The simple alternative to washing powder is Liquid Soap Flakes, most sizable supermarkets stock this in their own brand names - and you use this in your washing machine instead of powders or ANY fabric conditioner type additives.
If all this produces no resolution to what you have, or your condition dramatically worsens, seek medical advice from your regular Doctor - but please note, many Doctors do not fully understand the differences between the potential skin conditions you may have. Therefore, the better course of action may be to see a Dermatologist, or alternatively, go to a Specialist Sexual Health Service and ask to see the duty Urologist.