Also known as allergy tablets, antihistamine, catarrh allergy medicine.
This page is general health information, not a diagnosis. Always consult a licensed clinician about your own health.
What this covers
Antihistamines relieve allergy symptoms such as sneezing, itchy eyes, runny nose, and hives by blocking histamine. Older types tend to cause drowsiness, while newer ones are mostly non-drowsy and better for daytime use.
Safe-use guidance
Choose a non-drowsy antihistamine for work, school, or driving days.
For predictable allergies (e.g. harmattan dust season), starting medicine before heavy exposure works better than chasing symptoms.
Reduce exposure too: dust control, closing windows during dusty winds, and washing bedding regularly all help.
For itchy skin reactions, an antihistamine plus avoiding the trigger usually beats repeatedly applying random creams.
If symptoms persist beyond two weeks despite treatment, get assessed — it may be more than simple allergy.
Cautions
Drowsy antihistamines impair driving and operating machinery, and the effect is worse with alcohol.
Some antihistamines are unsuitable for people with glaucoma, prostate enlargement, or certain heart conditions.
Do not use sedating antihistamines to make children sleep — this is unsafe.
Sudden swelling of lips, tongue, or throat with difficulty breathing is anaphylaxis — an emergency requiring immediate hospital care, not just a tablet.
How GoDoctor helps
Tell a GoDoctor pharmacist your symptoms and daily routine and they will recommend a suitable allergy medicine, delivered quickly so you are not stuck sneezing through the week.
Prescription medicines always require an in-app consultation with a licensed doctor first — the e-prescription then goes straight to a licensed partner pharmacy for dispensing and delivery.
Frequently asked questions
What should I be careful about with antihistamines & allergy medicines?
Key cautions: drowsy antihistamines impair driving and operating machinery, and the effect is worse with alcohol.; some antihistamines are unsuitable for people with glaucoma, prostate enlargement, or certain heart conditions.; do not use sedating antihistamines to make children sleep — this is unsafe.; sudden swelling of lips, tongue, or throat with difficulty breathing is anaphylaxis — an emergency requiring immediate hospital care, not just a tablet.. When in doubt, ask a pharmacist or doctor before acting.
How can GoDoctor help with antihistamines & allergy medicines?
Tell a GoDoctor pharmacist your symptoms and daily routine and they will recommend a suitable allergy medicine, delivered quickly so you are not stuck sneezing through the week. Prescription medicines always require an in-app consultation with a licensed doctor first — the e-prescription then goes straight to a licensed partner pharmacy for dispensing and delivery.