Autism therapies explained: what actually helps
An honest guide to autism therapies — speech therapy, OT, ABA, social skills groups and more — what the evidence says, and how to spot approaches to avoid.
Once a diagnosis arrives, so does a list of therapies — and, if you look online, a flood of expensive programmes promising transformation.
This guide is deliberately honest about what helps, what is contested, and what to avoid. The organising principle throughout: support that helps a child function is good; support that teaches a child to hide is not.
The question to ask about any therapy
Before signing up to anything, ask:
- Whose goal is this? Is it something that improves my child’s life, or something that makes them easier for other people?
- What happens when my child is distressed? Is distress treated as information to respond to, or as a behaviour to push through?
- Does it build skills or suppress traits? Teaching a child to ask for help is a skill. Teaching them to stop flapping is suppression.
- Does it transfer to real life? Skills demonstrated only in a clinic room have limited value.
- Am I being taught anything? You are with your child thousands of hours a year; a therapist is not.
Speech and language therapy (SLT / SLP)
Who it is for: almost every autistic child, including highly verbal ones.
Speech therapy for autistic children is much broader than pronunciation. It covers understanding language, using language socially, conversational turn-taking, understanding non-literal language, and — critically — alternative communication where speech is limited.
If your child has little or no speech, ask specifically about AAC (augmentative and alternative communication): picture systems, symbol boards, and speech-generating apps. A persistent myth says AAC delays speech. The research consistently shows the opposite: AAC supports spoken language development. See supporting non-speaking communication.
Green flags: works on your child’s actual communication goals; involves you; accepts all forms of communication; considers gestalt language processing for children who speak in scripts.
Occupational therapy (OT)
Who it is for: children with sensory differences, motor difficulties, or trouble with daily living skills.
OT covers sensory processing, fine and gross motor skills, self-care (dressing, feeding, toileting), and regulation strategies. For many families it produces the fastest visible improvement in daily life, because it changes the environment as well as the child.
A good OT will produce a sensory profile and a practical plan — what your child seeks, what they avoid, and what to do about each. Sensory processing in autism covers the concepts.
A caution: “sensory integration therapy” as a specific clinical protocol has a weaker evidence base than sensory-informed adaptations to the environment and routine. Environmental adaptation is cheap, immediate and effective. Prioritise it.
Applied Behaviour Analysis (ABA)
This is the most common therapy in the US, the most heavily marketed, and the most contested. You deserve a straight account.
The case for. ABA has the largest research base of any autism intervention, particularly for early intensive behavioural intervention, with documented gains in communication, adaptive behaviour and daily living skills. In the US it is often the only therapy insurance covers substantially.
The case against. Many autistic adults who received ABA report lasting harm, including elevated PTSD symptoms in some studies. The criticisms are specific: historic and some current forms prioritise compliance, suppress harmless self-regulatory behaviours like stimming, train children to override their own discomfort, and target goals that serve observers rather than the child. Very high hour counts (30–40 per week for a preschooler) are hard to justify on any developmental reasoning.
What has changed. Naturalistic developmental behavioural interventions (ESDM, PRT, JASPER) grew out of this tradition but look very different: play-based, child-led, in natural settings, focused on communication and joint attention rather than compliance.
If you are considering ABA, ask directly: What are the goals, and who chose them? Is eye contact a target? Is stimming targeted for reduction? What happens when my child says no or shows distress? Is the programme child-led and play-based? How many hours, and why that number? Do you employ autistic staff or consult autistic advisors?
Confident, specific answers are a good sign. Defensiveness is not.
Approaches worth knowing
Naturalistic developmental behavioural interventions (ESDM, PRT, JASPER). Play-based, child-led, strong evidence for early communication and joint attention. Generally well regarded.
Parent-mediated interventions (PACT, Hanen, EarlyBird). You are coached to adapt how you interact. Good evidence, low cost, and effects that persist because they change everyday life rather than a weekly hour.
TEACCH. Structured teaching using visual organisation and predictable environments. Widely used in schools and easy to adapt at home.
Social skills groups. Mixed evidence. Better when they teach genuinely useful skills (joining a game, asking for help, recognising unsafe situations) and when they are run by or with autistic people. Worse when they train children to perform neurotypical behaviour, which increases masking.
CBT adapted for autism. Good evidence for co-occurring anxiety, which affects a large proportion of autistic children. Must be adapted — more concrete, more visual, more explicit.
Feeding therapy. Useful where food selectivity is affecting nutrition. Insist on a sensory-informed, non-coercive approach; pressure-based methods reliably backfire (why your autistic child won’t eat).
Physiotherapy. For motor coordination difficulties, which co-occur frequently.
What to avoid
Red flags, without exception:
- Anything described as a cure or recovery from autism
- Chelation, hyperbaric oxygen, “detox” protocols, MMS/chlorine dioxide — these range from useless to dangerous, and some have caused deaths
- Restrictive diets started without a dietitian, especially in a child with an already narrow food range
- Supplement protocols costing hundreds a month
- Stem cell treatment marketed for autism
- Anything requiring you to stop other treatment
- Anything sold with urgency — “the window is closing”
- Anything that treats your child’s distress as manipulation
Gluten- and casein-free diets specifically: controlled trials have not supported them for autism symptoms, and they carry real nutritional risk for selective eaters. If you suspect a genuine food intolerance, that is a medical question for a doctor and dietitian.
Building a realistic plan
Most families cannot do everything, and should not try. A workable approach:
Pick two priorities — usually the things most limiting daily life. Communication and sensory regulation are common starting points.
Weight parent-mediated support highly. It runs all week, not one hour of it.
Protect childhood. A schedule packed with appointments crowds out play, rest and family time, all of which have developmental value. Downtime is not wasted time — for autistic children it is regulation time.
Review every six months. Is this working? Does your child enjoy it, or dread it? Dread is data.
Watch your child, not the programme. The most reliable indicator of a good therapy is a child who is happier, more communicative and less exhausted. The most reliable indicator of a bad one is a child who is compliant in the room and falling apart at home.
A note on this article. Nomi publishes educational information for parents. It is not medical advice, and it is not a recommendation for or against any specific programme. Discuss therapy decisions with your child’s clinical team.
Frequently asked questions
What is the most effective therapy for autism?
There is no single best therapy. Speech and language therapy and occupational therapy have the broadest support for improving communication and daily function. The most effective plans are individualised and built around the child's goals rather than around normalising behaviour.
Is ABA harmful?
It is genuinely contested. Many autistic adults report harm from compliance-based ABA, particularly older, intensive forms. Modern naturalistic approaches differ substantially. The key questions are whether the goals serve the child and whether distress is treated as information or as behaviour to extinguish.
How many hours of therapy does my child need?
There is no evidence-backed magic number, and very high hour counts come at a real cost in childhood, family life and rest. Quality, fit and generalisation to everyday settings matter more than volume.
Can I do therapy at home?
Yes, and parent-mediated approaches have good evidence. Therapists teaching you strategies you use daily often achieves more than a weekly clinic session your child attends alone.
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