I have these very tiny black stinging specks on my scalp.They are about the size of black pepper.I ve tried everything I could think of to rid them.I thought maybe head lice,but no bugs.they re is also a coating on scalp that is clear in color that is tough.I ve used Rid,vinegar,vaseline,betadyne,peroxide,Dawn dishwashing liquid,rinse with chlorine bleach and warm water solution.They sting and when you comb hair they fall out and quit stinging.I ve cut my hair extremely short and that did seem to help some.What could this possibly be? Yelling for help! YYYY@YYYY