No one here knows your child's medical history, and it would be dangerous and careless for anyone to give this question an answer. What may seem safe for even the general public may be disastrous for a few. I would not give the child anything without first consulting your doctor.
No, a 15 year old is not supposed to alternate Tylenol and Ibuprofen. It is important to get recommendation from a doctor before you buy any drugs.
800 mg every 6 hrs
Not without asking a doctor first. That much ibuprofen is considered a prescription dose.
Most likely ibuprofen, it relieves minor pain...
no
yes, a 9 yr old, 8 yr old or even a 7 yr can have one.
Of course they can, why shouldn't they?
no, a 15 yr old qualifies as a minor, a 22 yr old as an adult. however, a 17 yr old may date an 18 yr old or older.
yes it is illegal for a 18 yr old to date a 24 yr still in high school
The 16 yr old would need to be on the same mature level as the 20 yr old. And the 20 yr old would have to move slower than he/she would have to with another 20 yr old.
Yes
whenever a 55 yr. old can outwork a 20 yr. old