I have to add to ID's post here about hood piercing as well....
if you are thinking of getting it done...get it done by a professional piercer someone who knows what they are doing.
Speak to the piercer about what you want..and the risks. They will give you all the information u require.
Also no piercer will pierce that area if you are not clean...or if it that time of the month.
Aftercare of that area is highly important...more so that ears and tongue and it can take up to 8 weeks to fully heal. Also changing the bar can be very tricky and fiddly indeed because the bar is only 5mm long.
I have 11 piercings in total and 6 tattoos
afterthought: also if ur thinking of getting it done...ask about the risks of migration of the piercing. that area of skin is very fragile and sensitive...and can rip easily