(Note: you might be able to get these or an equivalent antibiotic from your doctor as samples in sealed packages)
(Note:These both are smaller pills than the traditional antibiotics above and the number of pills required is much less, but they are more expensive. Use when space is at a premium.)
(These are taken only twice a day, halving the number traditionally required)
(A full course of treatment only requires six doses, but they are VERY expensive.)
Another prescription medication to consider is a topical adrenocortico-steroid. These drugs are used to treat contact dermatitis (ie. poison ivy, oak and sumac), minor burns and sunburn and various other skin irritations. Non-prescription strength Hydrocortisone .5% and 1% is often included in first aid kits. It is very low potency, one reason it is available over the counter, and not much help in a lot of cases. A better choice might be one of the more potent medications in this class of drugs. Triamcinolone cream or ointment .1% or .5% (Aristicort, Kenalog) is much more potent and effective and available as a generic, making it inexpensive. Your doctor may offer other suggestions in this same class of drugs.
Of these, SMZ-TMP and ciprofloxacin have the most duplicate coverage, as do cephalexin and erythromycin. Since the intolerance of erythromycin is much higher than is allergy to cephalexin, I would favour cephalexin. Ciprofloxacin is stronger for intra-abdominal infections than SMZ-TMP, and is less likely to develop resistance. Although its use in children is a bit of a concern due to the question of joint pain (although this is rare), I would favour ciprofloxacin over than SMZ-TMP, even though SMZ-TMP is effective against MRSA. However, when the use of antibiotics is severely curtailed, antibiotic resistance will also decrease, and therefore MRSA will become less of a concern.
Therefore, the top three antibiotics to stockpile would be: