advice
Here is the conventional advice- I expect you've been through it all, but just in case!
Look at
Keratosis Pilaris | Doctor | Patient UK
Here are some recommendations from the British Association of Dermatologists (they aren't exactly helpful, but for what they're worth....):
?Avoid excessive dryness of the skin but emollients and moisturisers are of limited value. That is not to say that they have no value.
?Creams with salicylic acid, lactic acid or urea may be of value.
?Expensive cosmetic or vitamin creams are not helpful. (although there is a link with vitamin A deficieny so ensure you have sufficient in your diet without overdoing it, especially if pregnant/ planning to conceive when is can be harmful to supplement)
?An abrasive pad may be helpful.
?Take tepid showers rather than hot baths.
I have known a dermatologist successfully use roaccutane ( a very powerful vitamin A pill usually used for acne, with lots of horrible side effects) to treat this condition, but you'd have to put up with lots of potential side effects and it wouldn't be something I'd do without lots of thought!