How often cortisone injections are given varies based on the reason for the injection. This is determined on a case-by-case basis by the health care practitioner. If a single cortisone injection is curative, then further injections are unnecessary. Sometimes, a series of injections might be necessary; for example, cortisone injections for a trigger finger may be given every three weeks, to a maximum of three times in one affected finger. In other instances, such as knee osteoarthritis, a second cortisone injection may be given approximately three months after the first injection, but the injections are not generally continued on a regular basis.
When you say you’re not taking any other supplements, does that mean you’re also not taking any creatine or protein shakes? To answer your specific question, too much zinc – not balanced by copper – is not a good thing. This particular zinc supplement does not also contain copper, so if you’re eating a lot of high-zinc, low-copper foods, you might be doing yourself – including your skin – a disservice. If mild acne’s an ongoing issue for you, though, my guess is that something else is at play, instead or in addition. Are you eating dairy products , for instance?
A disease whose exact cause is unknown can be difficult or impossible to prevent. In the case of acne, what contributes to an outbreak is generally known, meaning there are things you can do to significantly reduce the risk of having a problem. Cleanliness is the number one preventive measure as it will greatly reduce accumulations of old skin cells and excess oil, which lead to clogged pores. A clogged pore does not always cause an acne problem but it definitely is a leading contributor. Avoiding tight clothing, tight headgear, or anything that can cause excessive perspiration is another preventive measure worth following.