To avoid losing even a day's enjoyment while away it is a good idea before setting off on any journey to select a few emergency items from your medicine cabinet (make sure that none of the items has expired!):

Laxative– glycerin suppositories
Rifaximin and bacterial flora to treat diarrhoea
Broad-spectrum antibiotic (e.g.. amoxicillin) to treat a sore throat, accompanied by throat patches, toothache, etc…
Throat spray and lozenges for a sore throat
Anti-inflammatory (e.g. sodium naproxen…)
Antibiotic cream containing cortisone (e.g. gentamicin sulphate and betamethasone valerate) for all skin irritations, insect bites or stings, sunburn …
Eye drops, best in single-dose packs (e.g. Euphrasia and chamomile)
Analgesic, antipyretic (e.g. paracetamol, acetylsalicylic acid)
Antihistamine
Cortisone (sublingual administration) (e.g. sodium phosphate betamethasone) for all emergencies
Box of plasters
Disinfectant wipes
Mineral salts (e.g. magnesium potassium aspartate) and vitamins necessary in all hot countries where heavy perspiration and loss of liquids is likely
Fructose by mouth in boiled sweet form, for immediate energy
Ear drops for earache (e.g. polymyxin sulphate, neomycin sulphate, lidocaine hydrochloride)
Melatonin to counter the effects of jet lag and aid night-time rest
Antiemetic (e.g. domperidone)
Dimenhydrate or bracelets to combat motion sickness (travel by car, plane, boat, etc.,).
The following personal hygiene items are essential:
Toothbrush, toothpaste, deodorant, intimate wipes, intimate soap

Before setting off for hotter climes and for a long-lasting, enviable tan without any unpleasant episodes of sunburn you will need:
A two-week beta carotene treatment (e.g. strong-action Carovit) before leaving
Treatment with Carovit melanin during exposure to sunlight
Treatment with Carovit Hydro upon your return to keep your skin moisturized

Selection of the following is very important:
Sun creams and after-sun creams to suit your skin type (Anthelios, Avene, Darphin, Roc, Rilastil, Labo, Korff , Demasol etc).
Active bronz cream for stimulating melanin production.