Hello sir,
That white layer present on the glans penis in called as smegma, nothing to worry, you need to clean your glans penis with normal water daily. Do not Panic, there must be some sort of infection which had occured because of not maintaing hygiene.
Next Steps
Send me the pic we can do video consulatation, once I see the condition we can starts some medicines.
Health Tips
Clean your Glans penis on daily basis with normal tap water, to prevent further infection. avoid sexual contact till the problem get solved.