This has been covered at length on an earlier thread. Bottom line, Q-tips should never be inserted into your ear at all, or if you must, any further than your index finger can fit.
The ear canal is covered in very soft tissue. It can be easily abraded (scratched) and then become inflamed or infected by a Q-tip or anything with a hard or sharp edge, not to mention the problems that can be created if you happen to puncture or tear your ear drum.
The human ear is a self-cleaning audio transducer system. In the shower (for the purpose of this thread we'll assume that bathing or showering is part of your regular hygeine), let some warm soapy water run into each ear, then use your index finger to massage the water into the ear canal. Then let the water run out. That's it. It is not necessary or advised to force high pressure water from a shower head inside the ear canal.
Those ear wax removal kits are not necessary, or advised, for use by most people nor can they be effectively used alone. A small percentage of the population naturally produces an excess of earwax. For these people periodic wax removal by flushing the ear canal with a syringe filled with a special solution that will dissolve the dried-up excess wax is best done in a doctors office. For everyone else ear wax removal kits are a waste of money and totally unnecessary.
Putting anything deep inside your ears is potentially damaging to your ears and your hearing. You don't want to wind up spending the better part of a day in a hospital emergency room waiting for the doctor to inspect the damage to your ear canal and/or ear drum from careless use of either Q-tips or any sort of ear cleansing kit.
At a minimum, you will have to use ear drops for several weeks, suffer the discomfort of the damage to the ear canal while it hopefully heals. You won't be able to use earplugs or buds for some time.
Next week on Your Body and You, why you should never pick your nose.
