Hi Betty, OK if evry one is right and its an ingrown hair, now if you can look at the spots and if you can see some black just under ths skin, that would be the hair, now being brave get a clean needle, and just pick it out it should be like a sping coil then just pluck it out and do the same with others, and next time you shave just shave the way the haor grows, downwards, nevet upwards.
Good Luck
if you shave it could be from ingrown hair