There are various threads on what you should have as essential items to care for your flock.
This list is what I've found essential.
The bulk of these items are from European sources but with the pictures many should be quite clear as to what they are and what they are for.
Fenbendazole wormer. This is not currently licensed for chickens in Spain but has recently been licensed in the USA. It's effective at various doses for all chicken worms including gape worm.
I've found a packet of surgical swabs vital for cleaning without leaving bits in the wounds.
A product such as Nutri Drench is designed for chickens but I haven't found it here in Spain. This is what I use. I bottle provides 6 doses in most case.
This is Permethrin spray and it will kill all know mites and lice on chickens. I find the spray easier to use than a powder.
This product (Metacam) is both an analgesic (Painkiller) and anti inflammatory. It is quite expensive but is easy to administer. The chickens here seem to quite like the taste.
This is Chlorhexidin. It is far better than hydrogen peroxide which has the tendency to cauterize the wounds. It is not suitable as a wipe type cleaner as it needs to stay in contact with the wound for about 20 seconds. You can buy this as a spray or as a pippet style applicator.
This is the equivalent of Corid. It's used when a chicken has coccidia. It's a vital drug to have on hand always. With chicks in particular you do not get much time before coccidia kills them.
This is an eye wash and I use this for eye injuries that do not effect the eyeball itself.
This is another eye treatment for injuries to the eyeball.
This ointment promotes skin regrowth. It's ideal for wound packing when you are trying to keep dirt from coming into contact with the healing flesh. I've found it to be very effective and an excellent substitute for anti biotic ointments.
Betadine is not only antiseptic, it's also anti fungal. A good all round wound treatment. I use this for injuries to combs and wattles.
I use pure white Vaseline for scaly leg mite.
I use this for vent inspections such as suspected egg binding and for impacted crop problems. Keep it in the fridge and you will be able to feed the chicken lumps rather than try to get liquid down them.
This is my Scaly Leg Mite (SLM) treatment kit. The mixture in the pot is 75% Vaseline and 25% Betadine. This combination when coated to the legs will suffocate the mites and the Betadine helps to clear away the mite poop that gives the legs that slightly fuzzy appearance.
Force feeding kit. The thin tube attached to the syringe gets used for liquids while the thin syringe from an old Metacam treatment works well for mashed foods as it's thin enough to slide by the side of the chicken breathing tube (Oesophaguos) located in the centre of the chickens throat.
Alcohol for hand and general cleaning duties.
Perhaps not essential but good to have on hand, Vitamin E capsules. The liquid inside the capsule can be squeezed out or sucked out with a syringe.
The feeds I use here.
This is my current prefered equivalent of an all flock feed. It's suitable for all age ranges and both sexes.
This is a decent layers only feed with not too much calcium.
This is the medicated feed I give to the chicks. I try to give this for at least three weeks.
I leave free choice calcium out and this is what I give.
Decent tight fitting leather rigger type gloves for handling the more reluctant chickens.
For disposable gloves I prefer these nitrile gloves to the basic latex variety.
The surgical locking scissors are the only item below that may be unusual. Very useful for holding skin section together when stitching for example.
Best 20 Euros I've spent. Small pet carrier. Great for isolation.
A good quality head torch is invaluable for night time inspections.
This has an article associated with it here.
When I've finished with the chickens and the chickens have finished demonstrating their displeasure one of these is handy for the recently inflicted wounds.