best way to rid a wart on a 11 year old

my son has had a flat wart on his knee for some time the dr tried freezing it 5 or 6 times and i also tried over the counter no luck please help

[BhumikaMD]

Hi,

There is no single treatment for warts that is 100% effective and different types of treatment may be combined.

You should consult a skin specialist for the symptoms. If these are plane warts - you would benefit by using salicylic acid cream, cryotherapy, curettage and light cautery.

If these are filiform warts - cryotherapy or curettage and light cautery would help.

Facial warts should not be treated with wart paints because of the risk of severe irritation and possible scarring.

Let us know if you need any other information and post us about what your skin specialist advises.

Regards.