Well, in short, according to 21 CFR 73.2150 and 21 CFR 70.3v of the FDA regulations, DHA is restricted to external application only when using sunless tanning products. This means no lips no inhalation from sprays just medicals bad simple topical additions.
And a greater part of medicals fake the issue is all those products bought were with the idea that the cure was just about to happen the next day or at the very latest next week. You didn't get to the point of being unhealthy yesterday or last week, but the good news is it won't take you as long to undo what it took so long to accomplish, if you want to call poor health an accomplishment.
It's a great idea to shift the focus of the visit away from the immunizations. Ask your son or daughter what they would like to tell the doctor. Remind them if they have had a physical complaint frequently that you're hoping the doctor will address. Suggest they mention their hobbies medicals bad and fake interests. Ask them what else they think the doctor will do besides the shots.
This is the mindset... the paradigm. There's no need to "do" anything until there are test results that directly connect to a specific classification of drugs we can use to change the test result. These isolated tests are next-to-never combined to give a picture representative of overall physiological function... or health. They're simply snippets of a system here, an organ there... scattered bits of information.
In all honesty, you should simply avoid spray tans all together. Even though this may be a small burden, a serious health issue like cancer would definitely overshadow it.
When you consider doing any sort of business online, look over this list and see if the appeal sounds like one or more of these scams. If so, check it out carefully before sending money.