Is it true that; when you apply your own saliva to a mosquito bite it would stop itching ?
There have been many personal experiences documented where people have experienced relief from itching of mosquito bites on the application of their own saliva to the itchy spot (reference 1, reference 2) It helps to reduce the itching because saliva has been proven to speed up tissue repair and has antibacterial properties. It also provides a moisturising effect on the itchy spot (reference). Salt is also known to provide relief to itching (reference) and the slight salt content of saliva helps in that respect too.
Kinda it can stop itching but mostly just helps it not itch and it has some antibacterial in it. but another thing you could do is add mud (if your outside doing stuff). That will more stop the itching if no answers to this question is helpful then try contacting a doctor and ask about what will help/not help mosquito bite.