I use the skin so soft and fresh bath oil as part of my fly spray, if you are interested, try this - works really well on my chaps and I know other people have found it good. Am about to enhance it with two teaspoons of bog myrtle as recommended by another user who added it to the receipe for midges.
250 ml of Avon Skin so Soft and fresh - 500 ml bath oil. This can be halved if midges not too bad. I am presently using one third of a bottle which is working well.
2 teaspoons of citronella oil
2 teaspoons of eucalyptus oil
2 teaspoons of lavender oil
2 teaspoons of tea tree oil
2 teaspoons of cedarwood oil
2 teaspoons of bog myrtle oil
Put into a 1 litre spray bottle. Top up to make 1 litre with either water or cold tea. Shake well before spraying and give a quick shake after every few squirts to make sure the oil is mixed with the water.
Spray on twice a day using enough to leave a fine mist on the coat. Ok for round sensitive areas.
I have used this on people as well as horses, but please do a patch test first in case your horse reacts to any of the above ingredients.
Cost works out about £3.00 a litre - not as cheap as some receipes but this does work well and smells nice.
Try this - I use on Chancer's sheath and the belly area just in front and inner thighs if he is sore.
1 heaped teaspoon of sudocream
1 level teaspoon of sulphur - don't panic if you can't get it
5 drops of teatree oil.
Mixed together and apply.
Once his bits were coated, I would also carefully spray a little of the fly spray on top as a final repellant, ie round the sides of the area, and put my hand over his sheath entrance and do belly area.
This mix is also very effective on mudfever, grease in heavies - basically any cracked or sore skin and soothes, heals and repels midges.
Only thing I did find, was that Chancer got a bit of a mucky willy - nothing to worry about and for me not a problem as he adores having it cleaned