The clinics with full diaries do three simple things: they book the next session before the client leaves, they remind the client shortly before results are likely to wear off, and they follow up anyone who lapses, once or twice, then stop. The interval itself is the doctor's decision, and the wording of your messages has to respect the rules on scheduled medicines and POPIA.
Most aesthetic treatments are maintenance treatments, which makes rebooking the single biggest lever on a clinic's income. It is also the job most likely to slip on a busy day.
How long between treatments?
Rebooking intervals are a clinical decision for the treating doctor, not reception. As a reference point, the SAHPRA-approved package insert for one botulinum toxin type A product reports that the effect on crow's feet lines lasted a median of four months, that forehead line results lasted about four months, and that "treatment intervals should not be more frequent than every 3 months" (SAHPRA package insert, 2023).
Fillers, skin boosters and skin treatments each have their own schedules, which vary by product and client. The practical rule is the same for all of them: the doctor records the next-treatment window in the client's file, and your system works from that.
Book it at checkout
A client who walks out with a date is far more likely to come back than one who means to "call nearer the time". At the end of each treatment:
- Look up the interval the doctor recorded.
- Offer a date inside that window before the client leaves.
- Confirm it in writing so they have it on their phone.
Clients who cannot commit yet should go on a recall list with their due date, so nobody has to remember them.
Remind them before results fade
| When | Message | Purpose |
|---|---|---|
| About 2 to 3 weeks before the due window (unbooked clients) | "Your next treatment with Dr X is due from [month]. Reply to book." | Turns intent into a booking |
| 48 hours before a booked session | Date, time, practitioner, how to change it | Prevents the forgotten appointment |
| 24 hours before | Short confirmation | Catches late conflicts |
| 2 hours before | Directions or parking note | Stops lateness becoming a no-show |
| 3 to 4 weeks after the due date (still unbooked) | "We haven't seen you since [month]. Would you like to book?" | Gentle win-back |
Remi sends the appointment reminders at 48 hours, 24 hours and 2 hours, lets clients move a session by replying, and on the Complete plan sends win-back messages to clients who have gone quiet.
Watch the wording
Two sets of rules shape what a rebooking message can say.
Scheduled medicines. Botulinum toxin products are scheduled medicines. The Aesthetic and Anti-Aging Medicine Society of South Africa says practices may not advertise a scheduled medicine such as Botox to the public, and suggests descriptive terms such as "wrinkle reducing injections" or "anti-frown treatment". A reminder sent to your own client is not the same as an advert, but the simplest safe habit is to leave brand names out of every message and say "your next treatment with Dr X".
POPIA. A reminder about treatment a client already has is different from promoting a new service. Do not add specials, discounts or "why not try lip filler?" to a rebooking message, because that turns it into direct marketing with its own consent rules. Our guide to WhatsApping patients under POPIA explains the line.
A good rebooking message is short:
Hi Thandi, it's nearly time for your next treatment with Dr Naidoo. Reply with a day that suits you and we'll find a slot, or reply STOP to opt out.
Make rebooking easy at any hour
Clients often think about their next appointment in the evening, looking in the mirror, not at 10am when you are open. If the only way to book is to phone during working hours, many will put it off and some will book elsewhere. Make sure there is always a way in:
- an online booking link
- a WhatsApp number that gets a reply
- a phone line that is answered, not a voicemail box
An AI receptionist for aesthetic clinics covers the last two. It can answer the line and WhatsApp messages at any hour, book into your diary and leave anything about reactions, suitability or results to your doctor.
Follow up lapsed clients, then stop
Every clinic has a list of clients last seen eight or twelve months ago. Some moved, some tried another clinic, many simply got busy. A two-step follow-up is enough:
- One friendly message a few weeks after they were due.
- If there is no reply, one call or message by a different channel.
Then mark the record and leave it. Clients who feel chased are more likely to leave a poor review than to rebook.
Measure it
You cannot improve rebooking without knowing the rate. Once a month, check:
- the share of treatment clients who left with the next session booked
- the share of recall-list clients who booked after a reminder
- the number of no-shows and late cancellations
Small changes, such as booking at checkout or adding the 2-hour reminder, show up in these numbers within a couple of months.
The short version
- The treatment interval is the doctor's decision. Store it per client.
- Book the next session before the client leaves.
- Remind unbooked clients before their window opens, and booked clients 48 hours, 24 hours and 2 hours before.
- Keep brand names and promotions out of rebooking messages.
- Make it easy to book in the evening, by WhatsApp or phone.
- Follow up lapsed clients twice, then stop, and track your rebooking rate monthly.