My question is - is this all normal? If not, is it some condition and what can I do to improve it? Thank you for your help. P.S.: I have been diagnosed with seborrhoeic dermatitis before. I haven't had any serious health conditions and haven't taken any medication that would have anything like this...

Tell the child to not worry about these things, a lot of people deal with this. Speak to the doctor also.

Be happy with the way you look, it is not something you need to worry about.

If they are heat rashes then try something cold to stop itching.

Be happy with the way you look, you do not have to look perfect.

I do not know if that is curable. A lot of people have this. I wish you, and him good luck. Speak to the doctor, maybe there is a way to cure it.

Doctors usually know best.
Try using a good cream, and stop itching the area so much. Itching can make things worse. Try a warm, wet, towel to stop the need to itch.

It sounds good however it also sounds expensive. Just weigh the pros and cons and speak to your doctor about it.

Maybe you could try prescribed dry skin lotions. Take vitamin c, it will improve the condition.

See the doctor about it.